48÷2(9+3) = ??

What is the answer?

  • 2

    Votes: 261 51.2%
  • 288

    Votes: 249 48.8%

  • Total voters
    510

Sintherius

Rookie
Use PEMDAS
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Do (9+3) which is 12, then multiply (since the 12 is still in parenthesis) by 2, which is 24.

48/24= 2.
 

sureshs

Bionic Poster
Interesting. Sometimes people say multiplication takes precedence over division in such cases, but in computer languages these days, they go left to right.
 

Sintherius

Rookie
Interesting. Sometimes people say multiplication takes precedence over division in such cases, but in computer languages these days, they go left to right.
The division and multiplication can interchange at any time, it doesn't matter the order.
 

OHAI

Rookie
You mean Please Excuse My Dear Aunt Sally failed me?

Math never was my strong subject.

:-|
 
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rdis10093

Hall of Fame
what the @#$% the poll keeps going in the wrong direction, it is 288 guys not 2 stop this thread now. You are just embarrasing yourselfs
 

krz

Professional
The way it's written it's 288... I was applied math and economics in school. If not, what a waste of an education.

I'm not sure how matlab got it wrong. Excel agrees with 288, so does google.

Parentheses first then left to right on the multiplication/division.

48/2(9+3) = Parentheses
48/2*12 = Left to Right
24 * 12 = 288

48/(2(9+3))= 2

This is like 6th grade math...
 
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rdis10093

Hall of Fame
this is so bad, I am taking high level calc classes in college. I swear to all of you on my future education, the answer is 288
 

Photoshop

Professional
the order of operations is that you do what's in the parenthesis first. then if there's multiplication and division, you assume the left-to-right interpretation unless there's another parenthesis.

answer is 288. 2 is incorrect.

Is this the 1st time fluffy beaver is wrong? :D thought he was always right... :(
 

Sintherius

Rookie
You guys are IDIOTS. PEMDAS IS NOT WRONG.

When you add 9 and 3, you get 12. THE PARENTHESIS ARE STILL THERE SO THE PROBLEM THEN BECOMES 48 / 2(12)

PARENTHESIS FIRST.

THE ANSWER IS 2
 

rdis10093

Hall of Fame
anyone that thinks or tries to argue that the answer is 2 should get a Referral. tennis is a gentlemen's sport. men should be educated. please stop going with 2 on the pull. I must end this
 

krz

Professional
You guys are IDIOTS. PEMDAS IS NOT WRONG.

When you add 9 and 3, you get 12. THE PARENTHESIS ARE STILL THERE SO THE PROBLEM THEN BECOMES 48 / 2(12)

PARENTHESIS FIRST.

THE ANSWER IS 2
So google, calculator and excel are wrong?

please post your education background along with your answerers please.
 

fluffy Beaver

Professional
I'll say it again, distribution comes first.

For example adding a variable.

48÷2(9x+3) = 1 >> 48÷(18x+6) = 1 >> 48 = 18x + 6 >> 42 = 18x >> 42/18 = x = 2 1/3.

Now we obviously can't add (9x + 3) together because of the variable, but we also wouldn't want to do 48÷2 first because the parenthesis should technically comes first, so we distribute the 2. So even if the 'x' wasn't there, it's the same concept.

PS: 2(9+3) = 24

and

2(9+3) = (18 + 6) = 24
 

Sintherius

Rookie
I'll say it again, distribution comes first.

For example adding a variable.

48÷2(9x+3) = 1 >> 48÷(18x+6) = 1 >> 48 = 18x + 6 >> 42 = 18x >> 42/18 = x = 2 1/3.

Now we obviously can't add (9x + 3) together because of the variable, but we also wouldn't want to do 48÷2 first because the parenthesis should technically comes first, so we distribute the 2. So even if the 'x' wasn't there, it's the same concept.

PS: 2(9+3) = 24

and

2(9+3) = (18 + 6) = 24
Thank you.
 

krz

Professional
The division and multiplication can interchange at any time, it doesn't matter the order.
That's just plain wrong. Even an 11 year old knows that multiplication and addition are commutative. While subtraction and division are not.

Can someone please explain how excel, google, and the calculator are wrong?
 

fluffy Beaver

Professional
That's just plain wrong. Even an 11 year old knows that multiplication and addition are commutative. While subtraction and division are not.

Can someone please explain how excel, google, and the calculator are wrong?
Well then, can you explain how Matlab is "wrong" from google, excel, and the calculator.

Obviously one or the other is wrong and I'd go with Matlab being correct.
 

freeez

New User
my 13 yr old daughter has come to the conclusion that half of you need to get back to school. The answer is 288.

BEDMAS

Brackets
Exponents
Division
Mulitplication
Addition
Subtraction

She is in enriched math.
 

Sintherius

Rookie
That's just plain wrong. Even an 11 year old knows that multiplication and addition are commutative. While subtraction and division are not.

Can someone please explain how excel, google, and the calculator are wrong?
You didn't understand what I meant. I mean that you can do the multiplication BEFORE the division, or vice versa UNLESS there are parenthesis or exponents involved. Such as in this problem.
 

baek57

Professional
You know it's funny people are calling each other idiots. What's even funnier are the ones who are wrong doing the name calling. This is really elementary math. The answer is 2.
 

fluffy Beaver

Professional
You didn't understand what I meant. I mean that you can do the multiplication BEFORE the division, or vice versa UNLESS there are parenthesis or exponents involved. Such as in this problem.
All I can say is I at least tried to show work and explain my steps. If someone wants to do the same with a better explanation to prove us wrong I'd be happy to say I was wrong. But all the shouting with no proof isn't helping.
 

Devilito

Hall of Fame
I mean that you can do the multiplication BEFORE the division, or vice versa UNLESS there are parenthesis or exponents involved. Such as in this problem.
so in your world
48 ÷ 2 x 12 = both 2 AND 288?
amazing. Utterly amazing. The American education system at work here folks

You know it's funny people are calling each other idiots. What's even funnier are the ones who are wrong doing the name calling. This is really elementary math. The answer is 2.
there are only so many times i can post the Simple Jack pic. In your case i should make an exception
 

fluffy Beaver

Professional
so in your world
48 ÷ 2 x 12 = both 2 AND 288?
amazing. Utterly amazing. The American education system at work here folks



there are only so many times i can post the Simple Jack pic. In your case i should make an exception
Well another way to look at it is

48÷2 = 24x12 = 288 and
48x12 = 576÷2 = 288.

I'd assume left to right still applies in this.
 
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