Author Topic: 6÷2(1+2)= 1 or 9 ?
tenkly 
Title: Best looking Outposter.
Posts: 7,339
Registered: Mar 7, '07
Extended Info (if available)
Real Post Cnt: 7,327
User ID: 1,210,617
Subject: 6÷2(1+2)= 1 or 9 ?
thinking

 

-----signature-----
"Sir, when you die, what shall we do? Bury you? Burn you?" "Nay. I shall be mushroomed"
"You're a weird dude, Tenkly. Knife fights with women and you dress your cat up in sweater vests."- ZigmundZag
Link to this post
ZigmundZag 
Title: Grammar Nazi
Posts: 25,948
Registered: Mar 25, '02
Extended Info (if available)
Real Post Cnt: 22,707
User ID: 661,552
Subject: 6÷2(1+2)= 1 or 9 ?
LET IT GO ALREADY!

 

-----signature-----
"Take the cheese to sickbay!"
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
6/2(1+2) =
6/2*3 = 9
6/2 = 3*3 = 9
Final answer is 9

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
tenkly 
Title: Best looking Outposter.
Posts: 7,339
Registered: Mar 7, '07
Extended Info (if available)
Real Post Cnt: 7,327
User ID: 1,210,617
Subject: 6÷2(1+2)= 1 or 9 ?
NEVER ! LET ME RELIVE MY TROLL MATH QUESTION DAY IN PEACE.


I also posted it on my facebook, and in 2 minutes it's gotten 10 comments. WIll follow up if it gets epic like last year when my friend called her uncle and got him and his friend from UCLA to try and solve it

 

-----signature-----
"Sir, when you die, what shall we do? Bury you? Burn you?" "Nay. I shall be mushroomed"
"You're a weird dude, Tenkly. Knife fights with women and you dress your cat up in sweater vests."- ZigmundZag
Link to this post
Eradiani 
Title: Moderator/ EvEVault Staff
AE mid to deep

Posts: 31,200
Registered: May 3, '02
Extended Info (if available)
Real Post Cnt: 30,155
User ID: 675,153
Subject: 6÷2(1+2)= 1 or 9 ?
what are we doing your math homework on the outpost today?

 

-----signature-----
Link to this post
tenkly 
Title: Best looking Outposter.
Posts: 7,339
Registered: Mar 7, '07
Extended Info (if available)
Real Post Cnt: 7,327
User ID: 1,210,617
Subject: 6÷2(1+2)= 1 or 9 ?
If 2 = y
6÷y(y+1)=
6÷[(yxy) + (yx1)]=
6÷[y²+y]=
Replace y = 2
6÷(2²+2)=
6÷(4+2)=
6÷6=1

 

-----signature-----
"Sir, when you die, what shall we do? Bury you? Burn you?" "Nay. I shall be mushroomed"
"You're a weird dude, Tenkly. Knife fights with women and you dress your cat up in sweater vests."- ZigmundZag
Link to this post
Sea_of_inK 
Posts: 3,238
Registered: Oct 18, '04
Extended Info (if available)
Real Post Cnt: 2,898
User ID: 978,446
Subject: 6÷2(1+2)= 1 or 9 ?
I'm always surprised at how often people get these wrong.

Order of operations is pretty basic math.

 

-----signature-----
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
Thats different though because your using factoring (not distribution) my bad. Its not the same.

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
ZigmundZag 
Title: Grammar Nazi
Posts: 25,948
Registered: Mar 25, '02
Extended Info (if available)
Real Post Cnt: 22,707
User ID: 661,552
Subject: 6÷2(1+2)= 1 or 9 ?
Mastara posted:
6/2(1+2) =
6/2*3 = 9
6/2 = 3*3 = 9
Final answer is 9
There are graphing calculators that will solve it as "1" though. The location of the parentheses with implied multiplication lends ambiguity to where the denominator starts.

 

-----signature-----
"Take the cheese to sickbay!"
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
I'll grab mine, gimme a sec

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
It doesn't surprise me who Tinkles caught. laugh

 

-----signature-----
(none)
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
Mine is saying 9. 6/2(1+2) So mine is right and yours wrong! Take that math scholars!

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
Mine automatically sets it up as 6/2 * (1+2)

Which simplifies to 3 * 3

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
tenkly 
Title: Best looking Outposter.
Posts: 7,339
Registered: Mar 7, '07
Extended Info (if available)
Real Post Cnt: 7,327
User ID: 1,210,617
Subject: 6÷2(1+2)= 1 or 9 ?
ANNNNNNNNND the shit storm begins !

up to 45 comments on my status and people are insulting each other for having a dif answer laugh


 

-----signature-----
"Sir, when you die, what shall we do? Bury you? Burn you?" "Nay. I shall be mushroomed"
"You're a weird dude, Tenkly. Knife fights with women and you dress your cat up in sweater vests."- ZigmundZag
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
i posted it on my facebook too its actually kinda funny

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
Sansfear 
Posts: 7,232
Registered: Aug 31, '08
Extended Info (if available)
Real Post Cnt: 7,182
User ID: 1,318,423
Subject: 6÷2(1+2)= 1 or 9 ?
I wonder if your age will effect your answer. If you learned mathematics before the universal use of calculators you might think of problems like this differently. A lot of kids these days just plug it into the calculator and have no idea how the answer is arrived at.

The first thing about this equation is that it is poorly notated because it allows for two different implied views.

For myself, I automatically see it as

6
---
2(1+2)

as that is how I'd write it on a piece of paper. To me, that is the only reason for the notation to be the way it is.

 

-----signature-----
(none)
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
Well some people try to use the foil method, but you cant use that and get the right answer because there are no variables. It doesnt work like that.

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
Sea_of_inK 
Posts: 3,238
Registered: Oct 18, '04
Extended Info (if available)
Real Post Cnt: 2,898
User ID: 978,446
Subject: 6÷2(1+2)= 1 or 9 ?
http://lmgtfy.com/?q=6%2F2(1%2B2)

google doesn't lie grin

 

-----signature-----
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
haha

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
6 / 2 * 1 * ( 1 + 2 )

6 / 2 * 1 * ( 3 )

3 * 1 * 3

3 * 3

9

Start with parenthesis, then work left to right

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
Koneg 
Title: Evil Genius
Posts: 31,388
Registered: Dec 4, '01
Extended Info (if available)
Real Post Cnt: 28,579
User ID: 530,943
Subject: 6÷2(1+2)= 1 or 9 ?
Eradiani posted:
what are we doing your math homework on the outpost today?
No, he's just easily amused by dumb people who can't do math.

 

-----signature-----
* First rule of a gun fight: Have a gun.
|
"Any sufficiently advanced idiocy is
indistinguishable from trolling." -- Arthur C Clarke
Link to this post
Elkad 
Title: aka Ebenezer
Posts: 8,058
Registered: Sep 11, '03
Extended Info (if available)
Real Post Cnt: 7,478
User ID: 837,586
Subject: 6÷2(1+2)= 1 or 9 ?
Google says 9, and teh Google is always right!

 

-----signature-----
"I would rather be exposed to the inconveniences attending too much liberty, than those attending too small a degree of it." - Thomas Jefferson
Link to this post
tenkly 
Title: Best looking Outposter.
Posts: 7,339
Registered: Mar 7, '07
Extended Info (if available)
Real Post Cnt: 7,327
User ID: 1,210,617
Subject: 6÷2(1+2)= 1 or 9 ?
90 comments in 40 minutes. not bad !

 

-----signature-----
"Sir, when you die, what shall we do? Bury you? Burn you?" "Nay. I shall be mushroomed"
"You're a weird dude, Tenkly. Knife fights with women and you dress your cat up in sweater vests."- ZigmundZag
Link to this post
tenkly 
Title: Best looking Outposter.
Posts: 7,339
Registered: Mar 7, '07
Extended Info (if available)
Real Post Cnt: 7,327
User ID: 1,210,617
Subject: 6÷2(1+2)= 1 or 9 ?
google is wrong !
If 2 = y
6÷y(y+1)=
6÷[(yxy) + (yx1)]=
6÷[y²+y]=
Replace y = 2
6÷(2²+2)=
6÷(4+2)=
6÷6=1

 

-----signature-----
"Sir, when you die, what shall we do? Bury you? Burn you?" "Nay. I shall be mushroomed"
"You're a weird dude, Tenkly. Knife fights with women and you dress your cat up in sweater vests."- ZigmundZag
Link to this post
sweeny_comodore 
Posts: 9,066
Registered: Aug 23, '07
Extended Info (if available)
Real Post Cnt: 8,113
User ID: 1,248,480
Subject: 6÷2(1+2)= 1 or 9 ?
even i know the answer to this and i pushed in the calculator era back in the 70s when scientific calculators were cool.


a lot of the problem is that kids arent taught how to actually DO math anymore, they are taught to memorize flash cards and use calculators.
they were even teaching the memorize thing when i was a kid. thats part of why i hate math so much.
i argued with them to teach me how to arrive at the answer rather than make me memorize the pattern of symbols

 

-----signature-----
Jesus? No, but there is indeed a god shaped hole in the heart of man, why is yours so empty? -- snarf igraine
the original monotheism: http://en.wikipedia.org/wiki/Phallus
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
sweeny_comodore posted:
even i know the answer to this and i pushed in the calculator era back in the 70s when scientific calculators were cool.


a lot of the problem is that kids arent taught how to actually DO math anymore, they are taught to memorize flash cards and use calculators.
they were even teaching the memorize thing when i was a kid. thats part of why i hate math so much.
i argued with them to teach me how to arrive at the answer rather than make me memorize the pattern of symbols



The memorization was only to facilitate dealing with math on a more instinctive level though sweeney. I know that doesn't seem like it makes any sense, but it is fundamental for people to get a grasp of things like their multiplication tables in order for them to be able to grasp the math that comes after... Note that I am not saying you couldn't do this, I am just attempting to justify the early memorization training that comes as part of teaching math. It's similar to the way we learn any language really (other than organically learning it through immersion) - there is a certain memorization component to it that is required in order to become conversant with the rest of it...

Physics is the law of the universe, chemistry is the first child of physics, and biology the grandchild, but mathematics is the language of the whole family.

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
__Bonk__ 
Posts: 53,947
Registered: Jul 25, '09
Extended Info (if available)
Real Post Cnt: 53,339
User ID: 1,364,654
Subject: 6÷2(1+2)= 1 or 9 ?
You need to look up the rules of order of operations when doing formulas. Im too lazy to do that but I remember stuff like this years ago in math class

grin

 

-----signature-----
I keep my eyes fixed on the sun!
A change in feeling is a change in destiny.
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
It isn't really a math problem. It's just a problem with ambiguous notation.

If you write it as:

6
_
2(1+2)

You get one answer.

If you write it as

6 divided by 2 times (1+2) you get a diff answer.

 

-----signature-----
(none)
Link to this post
Sinlock 
Title: Savior of the Camelot Outpost
Posts: 27,600
Registered: May 14, '00
Extended Info (if available)
Real Post Cnt: 26,129
User ID: 24,657
Subject: 6÷2(1+2)= 1 or 9 ?


How much does it feel like though if you hang it from the end of a 20 foot rope? coffee

 

-----signature-----
THOOOOKA...THOOOOOKA...THOOOOOKA...
Future Grand President For Life of the Universe (you'll see! you'll be sorry then!)
Outpost Terrorist #1! I don't care what any law says!
Link to this post
ZigmundZag 
Title: Grammar Nazi
Posts: 25,948
Registered: Mar 25, '02
Extended Info (if available)
Real Post Cnt: 22,707
User ID: 661,552
Subject: 6÷2(1+2)= 1 or 9 ?
Can you say that to Tenkly without being racist?

 

-----signature-----
"Take the cheese to sickbay!"
Link to this post
Phlegm573 
Posts: 14,133
Registered: Jun 12, '02
Extended Info (if available)
Real Post Cnt: 12,216
User ID: 687,948
Subject: 6÷2(1+2)= 1 or 9 ?
Ok let's settle this once and for all by asking Hitler.


Hitler! What is 6÷2(1+2)???









ok... you only had to say it once tho...

 

-----signature-----
"I try to make men-only kinship?" - bstulic
"It takes balls to execute an innocent man." - actual Republican voter
http://tinyurl.com/6p8a7rp - summary of Israel vs. Palestine
Link to this post
Abaddon_Ambrosius 
Title: Retired Theurgist TL
Posts: 25,187
Registered: Dec 21, '01
Extended Info (if available)
Real Post Cnt: 25,057
User ID: 568,022
Subject: 6÷2(1+2)= 1 or 9 ?
I got 1, using the ancient Please My Dear Aunt Sally method.

But then again, I don't know the "definitive" source to verify whether I'm right, or if I've hosed it somewhere.

 

-----signature-----
In the immortal words of Socrates - "I drank what?"
"God you guys suck at the internet - how can you fail to locate porn?!" - Eternal_Midnight
"Knowing means nothing." - Fat-badger
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Abaddon_Ambrosius posted:
I got 1, using the ancient Please My Dear Aunt Sally method.

But then again, I don't know the "definitive" source to verify whether I'm right, or if I've hosed it somewhere.




You've hosed it slightly. Multiplication and Division are equivalent in the order of operations and so, get handled left to right, as do addition and subtraction... so it could as easily be PEMDAS as PEDMSA or PEDMAS or PEMDSA...

6/2(1+2) =

Parentheses first:

6/2(3) <-- same as saying 6/2*3 - here the parentheses become shorthand for multiplication (which is part of the flaw of this particular problem - the choice to use ambiguous notation as parentheses are usually used with variables when not used to define order of operations)

Exponents next (no exponents)

Then divide and multiply next - going left to right, we have to divide first so it becomes 3 * 3 or 9.

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Abaddon_Ambrosius 
Title: Retired Theurgist TL
Posts: 25,187
Registered: Dec 21, '01
Extended Info (if available)
Real Post Cnt: 25,057
User ID: 568,022
Subject: 6÷2(1+2)= 1 or 9 ?
By the way, does anyone under 50 remember PMDAS and how it works? Or do I actually need to show it?

Bottom line... the whole 'implied multiplication' goes away because you are supposed to do WHATEVER is in the parens first. Then you move down the order of ops. That makes this particular problem easy.

...assuming, again, that I'm not missing something astoundingly obvious.

 

-----signature-----
In the immortal words of Socrates - "I drank what?"
"God you guys suck at the internet - how can you fail to locate porn?!" - Eternal_Midnight
"Knowing means nothing." - Fat-badger
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
I'm 42 lol, read above!

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Rikarus 
Title: Ultimate Badass
Posts: 25,608
Registered: Feb 24, '02
Extended Info (if available)
Real Post Cnt: 19,041
User ID: 649,730
Subject: 6÷2(1+2)= 1 or 9 ?
.999999~= 1.0

 

-----signature-----
"But we are all that way: when we know a thing we have only scorn for other people who don't happen to know it." Clemmens
|
"Skinny would let his fists do the fisting." RonMexico
|
"/Pwning is serious business" Illy
Link to this post
Abaddon_Ambrosius 
Title: Retired Theurgist TL
Posts: 25,187
Registered: Dec 21, '01
Extended Info (if available)
Real Post Cnt: 25,057
User ID: 568,022
Subject: 6÷2(1+2)= 1 or 9 ?
OK, well, I'm probably wrong but this is the rudimentary method I was taught:

ooo = PMDAS

6÷2(1+2)
6÷2(3)
6÷6
---
1

I thought when you did order of ops and you had equivalent operations, you went from right to left. Might be where I've screwed up. Or gotten it right. Who knows. I never got past basic stats and I let employees do this for me, the last decade or so. lol

 

-----signature-----
In the immortal words of Socrates - "I drank what?"
"God you guys suck at the internet - how can you fail to locate porn?!" - Eternal_Midnight
"Knowing means nothing." - Fat-badger
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Cawlin posted:

Then divide and multiply next - going left to right, we have to divide first so it becomes 3 * 3 or 9.


It depends how you interpret the division sign and what's in the denominator vs numerator.

It's just ambiguous. Which is why they teach you never to use notation like that.

 

-----signature-----
(none)
Link to this post
Rikarus 
Title: Ultimate Badass
Posts: 25,608
Registered: Feb 24, '02
Extended Info (if available)
Real Post Cnt: 19,041
User ID: 649,730
Subject: 6÷2(1+2)= 1 or 9 ?
Abaddon_Ambrosius posted:
OK, well, I'm probably wrong but this is the rudimentary method I was taught:

ooo = PMDAS

6÷2(1+2)
6÷2(3)
6÷6
---
1

I thought when you did order of ops and you had equivalent operations, you went from right to left. Might be where I've screwed up. Or gotten it right. Who knows. I never got past basic stats and I let employees do this for me, the last decade or so. lol



No you have done it correctly, sadly math is no longer tuaght in our shcools.....they just have guess tables!

 

-----signature-----
"But we are all that way: when we know a thing we have only scorn for other people who don't happen to know it." Clemmens
|
"Skinny would let his fists do the fisting." RonMexico
|
"/Pwning is serious business" Illy
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Yukishiro1 posted:
Cawlin posted:

Then divide and multiply next - going left to right, we have to divide first so it becomes 3 * 3 or 9.


It depends how you interpret the division sign and what's in the denominator vs numerator.

It's just ambiguous. Which is why they teach you never to use notation like that.



Denominator and numerator have nothing to do with it.

The ambiguity is that people see the parentheses and assume that it must be handled first even though there is no operation left to do INSIDE those parentheses... and in this case, after you've added 1 and 2, there isn't and the parentheses becomes shorthand for multiplication which people who've taken algebra are familiar with.

6/2*3 = ?

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Rikarus posted:
Abaddon_Ambrosius posted:
OK, well, I'm probably wrong but this is the rudimentary method I was taught:

ooo = PMDAS

6÷2(1+2)
6÷2(3)
6÷6
---
1

I thought when you did order of ops and you had equivalent operations, you went from right to left. Might be where I've screwed up. Or gotten it right. Who knows. I never got past basic stats and I let employees do this for me, the last decade or so. lol



No you have done it correctly, sadly math is no longer tuaght in our shcools.....they just have guess tables!



No.


http://www.mathsisfun.com/operation-order-pemdas.html


P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right)

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
Like the last thread on on a similar question, some of you have shockingly bad math skills.

The answer is 9. After you resolve the parentheses, they go away.

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
Sea_of_inK 
Posts: 3,238
Registered: Oct 18, '04
Extended Info (if available)
Real Post Cnt: 2,898
User ID: 978,446
Subject: 6÷2(1+2)= 1 or 9 ?
Rikarus posted:
Abaddon_Ambrosius posted:
OK, well, I'm probably wrong but this is the rudimentary method I was taught:

ooo = PMDAS

6÷2(1+2)
6÷2(3)
6÷6
---
1

I thought when you did order of ops and you had equivalent operations, you went from right to left. Might be where I've screwed up. Or gotten it right. Who knows. I never got past basic stats and I let employees do this for me, the last decade or so. lol



No you have done it correctly, sadly math is no longer tuaght in our shcools.....they just have guess tables!


lol

 

-----signature-----
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Cawlin posted:
Denominator and numerator have nothing to do with it.


They have everything to do with it. I already explained it above and I'm not gonna retype it. The problem is how you interpret the divided by sign. There is a reason you are taught never to write notation that way and always to use an actual numerator and denominator.

edit: Here's my previous post:

If you write it as:

6
______
2(1+2)

You get one answer.

If you write it as

6 divided by 2 times (1+2) you get a diff answer.

 

-----signature-----
(none)
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
Yukishiro1 posted:
If you just turn it into a different question, you get a different answer.


Thanks Yuki, you never fail to enlighten. rolling_eyes

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Eternal_Midnight posted:
Yukishiro1 posted:
If you just turn it into a different question, you get a different answer.


Thanks Yuki, you never fail to enlighten. rolling_eyes


To be fair, that's what Yuki's trained to do... however, in this case it's not correct to do so.

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
The original notation in tenkly's title line is ambiguous. You don't know where the divided sign carries over to. As I said before, there's a reason one of the first things you're taught is not to write out equations that way but to actually use a numerator and denominator. That sign is only used in elementary division because of its ambiguity.

 

-----signature-----
(none)
Link to this post
Koneg 
Title: Evil Genius
Posts: 31,388
Registered: Dec 4, '01
Extended Info (if available)
Real Post Cnt: 28,579
User ID: 530,943
Subject: 6÷2(1+2)= 1 or 9 ?
Abaddon_Ambrosius posted:
I thought when you did order of ops and you had equivalent operations, you went from right to left.
Only if you're British.

 

-----signature-----
* First rule of a gun fight: Have a gun.
|
"Any sufficiently advanced idiocy is
indistinguishable from trolling." -- Arthur C Clarke
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Yukishiro1 posted:
The original notation in tenkly's title line is ambiguous. You don't know where the divided sign carries over to. As I said before, there's a reason one of the first things you're taught is not to write out equations that way but to actually use a numerator and denominator. That sign is only used in elementary division because of its ambiguity.




In order to handle it the way you want to Yuki, you need another set of parentheses.

6/(2(1+2))



The problem with notation comes in using the first set of parentheses instead of a multiplication sign (* or x) when there are no variables.

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Using another set of parentheses clears up the ambiguity. It doesn't mean the original isn't ambiguous.

As I've said like 5 times now, there's a reason you're taught not to use that symbol. It's a stupid question because it relies on bad notation.

 

-----signature-----
(none)
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
Yukishiro1 posted:
The original notation in tenkly's title line is ambiguous. You don't know where the divided sign carries over to. As I said before, there's a reason one of the first things you're taught is not to write out equations that way but to actually use a numerator and denominator. That sign is only used in elementary division because of its ambiguity.




If you do your basic math properly, there is only one way to do this question.

After evaluating the parenthesis, you have 6÷2*3. There is only one way to evaluate this. happy

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Yes, I get that's how we've decided to interpret bad, ambiguous notation. It's still bad, ambiguous notation.

It's stupidly awkward to have to designate whether something is in the denominator or numerator of a fraction by using a bunch of parentheses. There is a reason you don't actually write things that way when doing real math. Even a simple equation becomes a chore to write out and you end up with 4-5 sets of parenthses just to solve a relatively basic equation when they are totally unnessecary if you just do what you're supposed to do and actually write the fraction out properly so there's no ambiguity.

 

-----signature-----
(none)
Link to this post
Mastara 
Posts: 8,982
Registered: Dec 29, '04
Extended Info (if available)
Real Post Cnt: 8,312
User ID: 1,011,569
Subject: 6÷2(1+2)= 1 or 9 ?
Your not even doing it right tenkly. Your turning a standard arithmatic problem into a factoring problem. The two are not the same.

 

-----signature-----
Boooooommmm Heeeaaaddddshhhhooooottttt!
http://www.carellaross.com/img/truth_its_the_new_hate_speech.jpg
Mastatheimposta - 10L2 SB Merlin
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Yukishiro1 posted:
Yes, I get that's how we've decided to interpret bad, ambiguous notation. It's still bad, ambiguous notation.

It's stupidly awkward to have to designate whether something is in the denominator or numerator of a fraction by using a bunch of parentheses. There is a reason you don't actually write things that way when doing real math.


Um, "real" math is done by computers nowadays dude. You write it in one line.

Further, the whole use of extra parentheses was adopted to help reduce ambiguity from sloppy handwriting...

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Uh using your stupid notation even a basic equation like old:

p ....... r+5
_____ x ____
q+3 .... s-2

becomes ridiculously difficult. You have to write something absolutely stupid like (p/(q+3))((r+5)/(s-2)).

edit: worthless boards don't allow for good formatting so I had to put in some dots to fill space.

 

-----signature-----
(none)
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
Amazingly, those symbols exist to clear up what you say is ambiguity.

I don't dispute that if you change the equation, or write it as a fraction, you get a different answer. The equation as written can only be interpreted one way.

What do I know, I've only taken the equivalent of 11 different post secondary math courses.

Actually it's 13 now that I count. Apparently all those courses didn't help me count any better.

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Yukishiro1 posted:
Uh using your stupid notation even a basic equation like old:

p ....... r+5
_____ x ____
q+3 .... s-2

becomes ridiculously difficult. You have to write something absolutely stupid like (p/(q+3))((r+5)/(s-2)).

edit: worthless boards don't allow for good formatting so I had to put in some dots to fill space.


It's not "my" notation. It's just the syntax of the language. In the case of math and just about every other language, syntax carries meaning. If you get the syntax wrong, you miss the meaning.

Let's eat Grandpa.

Let's eat, Grandpa.

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
__Bonk__ 
Posts: 53,947
Registered: Jul 25, '09
Extended Info (if available)
Real Post Cnt: 53,339
User ID: 1,364,654
Subject: 6÷2(1+2)= 1 or 9 ?
Its easy when you know the rules. I was taught those rules years ago but I forgot them lol

grin

 

-----signature-----
I keep my eyes fixed on the sun!
A change in feeling is a change in destiny.
Link to this post
Lyken-P 
Posts: 8,313
Registered: Jan 14, '06
Extended Info (if available)
Real Post Cnt: 8,289
User ID: 1,108,553
Subject: 6÷2(1+2)= 1 or 9 ?
doh!

 

-----signature-----
(none)
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Eternal_Midnight posted:

What do I know, I've only taken the equivalent of 11 different post secondary math courses.

Actually it's 13 now that I count. Apparently all those courses didn't help me count any better.


And none of them taught you not to use that notation because it's stupid and results in dumb amounts of parentheses to just clear up something as simple as what's on top of a fraction and what's on the bottom?

I find that unlikely. Or maybe they just really didn't do that back when you went to school in the middle ages. grin

edit: It really is just poor notation. To express even a problem of moderate complexity you end up using 4-5 sets of parentheses. At that point simply trying to match up sets of parentheses becomse a chore. Whereas if you use real notation using real numerators and denominators you end up with something that is crystal clear what you are trying to express.

 

-----signature-----
(none)
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
Yukishiro1 posted:


And none of them taught you not to use that notation because it's stupid and results in dumb amounts of parentheses to just clear up something as simple as what's on top of a fraction and what's on the bottom?

I find that unlikely. Or maybe they just really didn't do that back when you went to school in the middle ages. grin




Nope, not once was it ever said "Don't use this symbol! It confuses people!' because it doesn't.

It's a division sign. You divide what is before the sign by what is after it.

What is beautiful about math is that there isn't any ambiguity whatsoever, because the rules of math exist to interpret the symbols in exactly the same way no matter who does it. I also never heard of this 'implied multiplication' some other people speak about.

You might think it's dumb to have to write extra parentheses, but that's what you have to do to get the equation and answer you need. You can't just interpret it the way you think it was 'intended', you can only interpret it as it is written.

If you think having to write a few extra parentheses makes it confusing, you should see the symbols of used in mathematical proofs. Do a couple of those and you'll be longing to be able to write just a couple parentheses.

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
the_great_intex 
Title: This is what cool looks like
Posts: 30,622
Registered: Jun 27, '02
Extended Info (if available)
Real Post Cnt: 27,363
User ID: 692,453
Subject: 6÷2(1+2)= 1 or 9 ?
Hold on guys while I contact some scientists to solve this for us

plain

 

-----signature-----
Only those who dare to fail greatly, can ever achieve greatly
In the middle of difficulty lies opportunity
The only thing in life achieved without effort is failure
Time Circuits... On. Flux Capacitor.... fluxxing.
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Maybe I need to try again.

You can either use a notation system which requires 4-5 sets of parentheses to express even a moderately complex equation because you refuse to use numerators and denominators.

Or you can use a system which barely ever requires more than one set of parentheses to express a moderarely complex equation, because you actually use numerators and denominators.

It is pretty clear the latter is better. I am honestly shocked you were never taught that. You were seriously doing problems along the lines of

((2(2+3(3/7)))(7))(76/2(4-8(7/3)))

When you could have just written them out sensibly instead? I can't imagine how much time you all wasted just trying to decode parentheses that were completely unnesecary if you had just used more sensible notation to begin with. In fact, I can't imagine how you would even solve any variable equations you wrote out that way by hand. It would be so, so much more clumsy than using more conventional numerators and denominators to indicate your fractions instead of division symbols with tons of extra parentheses.

 

-----signature-----
(none)
Link to this post
Sansfear 
Posts: 7,232
Registered: Aug 31, '08
Extended Info (if available)
Real Post Cnt: 7,182
User ID: 1,318,423
Subject: 6÷2(1+2)= 1 or 9 ?
I'd like to see someone write out physics equations in a straight line without a numerator and a denominator and then try and solve it.

 

-----signature-----
(none)
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Sansfear posted:
I'd like to see someone write out physics equations in a straight line without a numerator and a denominator and then try and solve it.




NO MAN EINSTEIN TOTALLY WOULD HAVE PREFERRED TO WRITE THINGS OUT IN ONE LINE AND USE A BAJILLION PARENTHESES INSTEAD!111

 

-----signature-----
(none)
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
You guys are cute.

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
It's not a matter of convenience, or how easy it is to write out. This is a math problem, not a work of art. If you are doing fractions, then WRITE IT AS A FRACTION. You don't use the division sign if you intended a fraction.

And if you were writing the equation into code or Excel, that's exactly how you'd have to write it, or you'd get an incorrect answer. Computers don't do ambiguity, either.

By the way, your equation:
((2(2+3(3/7)))(7))(76/2(4-8(7/3)))
would actually be written like this:
{{2[2+3(3/7)]}(7)}{76/2[4-8(7/8)]}

Parentheses are used first (), then braces [], then brackets {}. It is precisely this reason that pretty much all programming languages match opening and closing brackets for you, as does Excel, because sometimes it's necessary to extensively nest them.

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Eternal_Midnight posted:
If you are doing fractions, then WRITE IT AS A FRACTION. You don't use the division sign if you intended a fraction.


...

...

/facepalm


 

-----signature-----
(none)
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
Just because people typing on computers play it fast and loose with symbols doesn't change their meaning, nor does it change the fundamental rules of math.

When you do math on paper, you write and interpret the equations as they are written. Clearly, you wouldn't write out a bunch of brackets for a fraction: you'd write a fraction.

We have to use those brackets here in this medium because it's not easy to write out an exact fraction, and the brackets and braces are used to remove ambiguity that arises from the medium.

Which brings it back to my point: you can only interpret the problems as they are written.

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Eternal_Midnight posted:
I also never heard of this 'implied multiplication' some other people speak about.


This link describes what I was trying to describe above:

http://knowyourmeme.com/memes/48293

KYM posted:
Implied Multiplication

However, the answer 2 could be justified by the principle of implied multiplication. For example, consider the problem "2/5x."

If one strictly follows the standard order of operations, the correct interpretation would be “(2/5)*(x).”

But many calculators and textbooks state that a higher value of precedence should be placed on implied multiplication than on explicit multiplication:

Because “5x” is implied to be "5*x," it gets higher priority than "2/5." In this case, "2/5x" would be interpreted as "(2)/(5*x)."

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Fat_wong 
Posts: 2,197
Registered: Feb 6, '07
Extended Info (if available)
Real Post Cnt: 2,137
User ID: 1,204,315
Subject: 6÷2(1+2)= 1 or 9 ?
OH LOOK, IDIOTS

 

-----signature-----
(none)
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
Oh, I know what it is, Cawlin, but this board is the only place I've ever seen it or heard about it. The last time it came up I had to google it.

Your own link contains the answer, as far as I've been taught: if one strictly follows the standard order of operations...

Why would you do it any other way? A thousand years and more of math don't change because some calculator or textbook doesn't quite understand the rule, or because someone doesn't want to type out a set of parentheses.

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Eternal_Midnight posted:
Oh, I know what it is, Cawlin, but this board is the only place I've ever seen it or heard about it. The last time it came up I had to google it.

Your own link contains the answer, as far as I've been taught: if one strictly follows the standard order of operations...

Why would you do it any other way? A thousand years and more of math don't change because some calculator or textbook doesn't quite understand the rule, or because someone doesn't want to type out a set of parentheses.




I am not arguing FOR the "implied" multiplication thing, I'm just pointing out that THIS is the source of the ambiguity in the annotation of the problem...

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
Eternal_Midnight posted:
Clearly, you wouldn't write out a bunch of brackets for a fraction: you'd write a fraction.


I'm glad we've finally established that using a bunch of brackets and parentheses instead of just writing out your fraction is poor notation. I don't know quite why it took so long, but at least we're finally there.

 

-----signature-----
(none)
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
For 'fun' I checked my current math textbook; it makes no mention of this implied multiplication, either.

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
Cawlin 
Posts: 20,754
Registered: Feb 22, '05
Extended Info (if available)
Real Post Cnt: 20,667
User ID: 1,030,445
Subject: 6÷2(1+2)= 1 or 9 ?
Eternal_Midnight posted:
For 'fun' I checked my current math textbook; it makes no mention of this implied multiplication, either.


I don't know where it came from man, I only had up to calc II and physics II in college. I am aware however, that people sort of get confused about when parentheses disappear and when they still apply - and that people mix their algebra rules with their basic math rules all the time.

 

-----signature-----
If ignorance were painful, half the posters here would be on morphine drips.
Everyone playing WoW knows everything about playing two classes: 1) their own and 2) Hunters
Link to this post
Eternal_Midnight 
Posts: 19,580
Registered: May 11, '00
Extended Info (if available)
Real Post Cnt: 15,756
User ID: 24,262
Subject: 6÷2(1+2)= 1 or 9 ?
I'm not necessarily saying it's incorrect, either. happy I've just never seen it in my own math courses. I believe it is as a result of the digital age, and the difficulty in expressing certain things, like fractions, in code.

I guess I just don't understand why one would turn around and suggest that there is this thing called implied and explicit multiplication, when the math symbols already exist to write exactly what you mean. That's why I suggest that it's mostly people who don't really understand math rules who came up with it.

 

-----signature-----
We have not inherited the Earth from our parents, we have borrowed it from our children.
Link to this post
Shimatta33 
Posts: 12,418
Registered: Nov 19, '03
Extended Info (if available)
Real Post Cnt: 10,035
User ID: 859,758
Subject: 6÷2(1+2)= 1 or 9 ?
I can't fault the thread...it's a perfect troll thread that will bring out the dumb in some and the snob in others.

That being said the math is performed from left to right after the parenthesis are resolved. It's a basic order of operations question and yes it will be failed repeatedly by people with impressive titles.

 

-----signature-----
'tis an ill wind that blows no minds...
Link to this post
Shimatta33 
Posts: 12,418
Registered: Nov 19, '03
Extended Info (if available)
Real Post Cnt: 10,035
User ID: 859,758
Subject: 6÷2(1+2)= 1 or 9 ?
PS for future threads of this nature tinkles please include your GIF from last year:

 

-----signature-----
'tis an ill wind that blows no minds...
Link to this post
Koneg 
Title: Evil Genius
Posts: 31,388
Registered: Dec 4, '01
Extended Info (if available)
Real Post Cnt: 28,579
User ID: 530,943
Subject: 6÷2(1+2)= 1 or 9 ?
Eternal_Midnight posted:
If you are doing fractions, then WRITE IT AS A FRACTION. You don't use the division sign if you intended a fraction.
This is so /facepalm worthy I thought I'd just quote it and leave it entirely alone. doh!

 

-----signature-----
* First rule of a gun fight: Have a gun.
|
"Any sufficiently advanced idiocy is
indistinguishable from trolling." -- Arthur C Clarke
Link to this post
eodoll 
Posts: 17,153
Registered: Feb 14, '02
Extended Info (if available)
Real Post Cnt: 15,943
User ID: 645,592
Subject: 6÷2(1+2)= 1 or 9 ?
Id say its 1.

Use variables and its obvious .

x / y(a + b).

Which evaluates to:

x / (ya + yb)

Plug in the numbers
X =6
Y =2
A = 1
B = 2

And you get 1.

 

-----signature-----
(none)
Link to this post
Manegarm 
Title: European Imperialist Good Guy
Posts: 33,712
Registered: Aug 11, '03
Extended Info (if available)
Real Post Cnt: 32,596
User ID: 829,780
Subject: 6÷2(1+2)= 1 or 9 ?


Well done Tenks.

 

-----signature-----
Europa Eternita!
"Damn, Manegarm; you are HAWT!! " - Taolynn
"To the everlasting glory of the infantry, Shines the name Shines the name of Rodger Young"
ALWAYS ANGRY, ALL THE TIME!
Nein mann ich will noch nicht gehen
Link to this post
Koneg 
Title: Evil Genius
Posts: 31,388
Registered: Dec 4, '01
Extended Info (if available)
Real Post Cnt: 28,579
User ID: 530,943
Subject: 6÷2(1+2)= 1 or 9 ?
eodoll posted:
Id say its 1.

Use variables and its obvious .

x / y(a + b).

Which evaluates to:

x / (ya + yb)
Only if you completely ignore PEMDAS and you're British and take the order of operations right to left.

The rest of us not interested in a completely wrong farking answer will continue to go left to right and get... 9.


 

-----signature-----
* First rule of a gun fight: Have a gun.
|
"Any sufficiently advanced idiocy is
indistinguishable from trolling." -- Arthur C Clarke
Link to this post
eodoll 
Posts: 17,153
Registered: Feb 14, '02
Extended Info (if available)
Real Post Cnt: 15,943
User ID: 645,592
Subject: 6÷2(1+2)= 1 or 9 ?
On 2nd thought 6/2(1+2) is 9. These kinds of stupid questions are what they put on some tests and theyre racist sometimes too.

 

-----signature-----
(none)
Link to this post
Yukishiro1 
Posts: 38,362
Registered: Sep 20, '02
Extended Info (if available)
Real Post Cnt: 31,453
User ID: 718,633
Subject: 6÷2(1+2)= 1 or 9 ?
laugh

 

-----signature-----
(none)
Link to this post
RHWarrior 
Posts: 5,026
Registered: Sep 30, '09
Extended Info (if available)
Real Post Cnt: 5,021
User ID: 1,372,077
Subject: 6÷2(1+2)= 1 or 9 ?
F-n put up some parantheses n00b or display the formula proper not on a single line of text.

nerd

 

-----signature-----
"Drink coffee - do stupids things faster with more energy! ...and I'm all out of beans..." -me
"You guys need to stop dick riding wow and compare everything to it. It never invented a godamn thing, just made it popular. " -tinkly
Link to this post

Valid XHTML 1.0 Transitional Powered by PHP