48÷2(9+3) = ????

Your Answer?


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Parentheses can be a symbol of multiplication. Multiplication is equal to Division in precedence. If the Division comes first, you must do division first.

Order Of Operations

The order of operations tells us a step-by-step method for evaluating expressions:

Evaluate all expressions within parentheses and other grouping symbols.

Evaluate all expressions involving exponents.
Do the remaining multiplication and division, as you come to them, when working from left to right in the expression.
Do the remaining addition and subtraction, as you come to them, when working from left to right in the expression.

One trick to help remember the correct order of operations is to think of the acronym PE[MD][AS]. This stands for Parentheses, Exponents, [Multiplication and Division], [Addition and Subtraction].
 
The problem isn't with the math, it is a problem with how the problem is written out. I would argue that you could do that problem two ways and come out with 2 or 288. The equation is just written wrong
 
so then what's ?

48÷2x12=?

12x2÷48=?

Again it doesn't seem to be that you can switch orders and jump across the operator and do division.

I think it's 2.

could be wrong tho, I don't know the rules of math to say for sure.

You work them both left to right.

48÷2*12 = 24*12 288
12*2÷48 = 24÷48 = .5

I'm going to have to make this in a large font.
MULTIPLICATION AND DIVISION ARE OF EQUAL PRECEDENCE. When you come across multiplication and division you work left to right. Multiplication DOES NOT take precedence over division. THAT is where everyone is fucking up.
 
He did the PARENTHESIS FIRST! 12 times 2 equals 24. 48 divided by 24. Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction. Damn.

Doing the parentheses first means doing whats inside the parentheses first. 2(12) is part of the [MA]

(9+3) is part of the [PE]
 
I respectfully disagree.

Multiplication and division have EQUAL precedence. Therefore when you are faced with multiplication and division you work left to right. Multiplication does not take precedence over division and vice versa.


Read the original aloud.

It's forty eight divided by two, multiplied by nine plus three.

It's just looked it up, I don't think they are equal.

Multiplication trumps division

and

Addition has a precedence over subtraction.

Positive over negative.

PEMDAS

http://en.wikipedia.org/wiki/Order_of_operations

It is helpful to treat division as multiplication by the reciprocal (multiplicative inverse) and subtraction as addition of the opposite (additive inv)

in the real world, if you substract 4 apples from 3 apple, you don't really have a negative one apple. You just have Zero apples.
 
Parentheses can be a symbol of multiplication. Multiplication is equal to Division in precedence. If the Division comes first, you must do division first.

Exactly.

The answer is 288.

There's no ambiguity. Google, any graphing calculator, MATLAB, and other mathematical software will give you the correct answer of 288.
 
You put it in Wrong. I went to go grab my ti 83 just now, you input it like this 48/(2(9+3)) If you did this 48/2(9+3) then that's WRONG because ur telling the computer 48 over 2 multiplied by 12 which is 288. That is Wrong. There are plenty of ways to enter things incorrectly. That's is why you can't rely on a calculator unless you are really good with them.

You changed the equation if you input it "like this" 48/(2(9+3))

As the op wrote it, the equation is essentially (48/2)*(9+3)

Funny how the most disrespectful person in this thread is the most ignorant.

In math, the way you write it changes an equation without having to change the numbers or even the symbols.

You just said that 48/2(9+3) as written in the OP is 288. So you AGREED.

In your haste to act superior to others you make yourself look like an IDIOT by first AGREEING with me and those who said 288, but then saying they're WRONG! But YOU are the one changing the equation to hide the fact that you initially were INCORRECT!

Fuck that calculator shit man, these are simple ass numbers we're dealing with.

And I agree 48/(2(9+3)) IS 2. I already beat you to that punch as well. If you have me on ignore, then too bad because you'll remain IGNORANT. But I doubt anything could change that.
 
Again this is the Same problem, please explain how to get 288?



48
------
2(9+3)

The way the problem is written can be interpreted as (48/2)*(9+3)= ??? that is how people come up with 288. The correct way the problem should be written is how you have it above
 
lmao I've got two of my boys both with masters in Engineering and both of them got two different answers. I'm thinking it's 2 now fuck this problem and my previous posts.
 
The problem isn't with the math, it is a problem with how the problem is written out. I would argue that you could do that problem two ways and come out with 2 or 288. The equation is just written wrong

And this I can agree with, but the argument will continue :smh:

Again this is the Same problem, please explain how to get 288?


48
------
2(9+3)

But, some folks can also say it is:

48/2 * (9+3) :smh:
 
c'mon - there's actually someone here who can't do this problem? or you tryna get up to do your homework?
 
Again this is the Same problem, please explain how to get 288?



48
------
2(9+3)

Its not the same

it would be the same if it was 48 ÷ [2(9+3)]

But since its not its

48
----- (9+3)
2

The problem is written wrong or misunderstood because there needs to be a * before the (9+3) for everyone to get it. Instead of putting the imaginary * in place people are putting an imaginary bracket around 2(9+3)
 
I respectfully disagree.

Multiplication and division have EQUAL precedence. Therefore when you are faced with multiplication and division you work left to right. Multiplication does not take precedence over division and vice versa.


Read the original aloud.

It's forty eight divided by two, multiplied by nine plus three.

Leave it to BGOL to fuck with my head because I can see it this way as well!!!

It's true that multiplication and division are equal.
 
It's just looked it up, I don't think they are equal.

Multiplication trumps division

and

Addition has a precedence over subtraction.

Positive over negative.

PEMDAS

http://en.wikipedia.org/wiki/Order_of_operations

It is helpful to treat division as multiplication by the reciprocal (multiplicative inverse) and subtraction as addition of the opposite (additive inv)

in the real world, if you substract 4 apples from 3 apple, you don't really have a negative one apple. You just have Zero apples.

Using that same wikipedia page you posted I found this:

"These mnemonics may be misleading, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would also give the wrong answer."
 
Its not the same

it would be the same if it was 48 ÷ [2(9+3)]

But since its not its

48
----- (9+3)
2

The problem is written wrong or misunderstood because there needs to be a * before the (9+3) for everyone to get it. Instead of putting the imaginary * in place people are putting an imaginary bracket arounf 2(9+3)

That makes no sense at all... You just complicated a simple algebra equation.
 
The answer is 288.

In the order of operations (pemdas), multiply and divide do not out rank each other. Its whatever comes first.

In order to use distributive property, you have to come up with the same answer you did when you used pemdas. Pemdas takes precedent. If using distributive property changes the outcome it cant be used.
 
Using that same wikipedia page you posted I found this:

"These mnemonics may be misleading, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would also give the wrong answer."

:lol:
 
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