48÷2(9+3)

[wowo]

No you're right. It's the same thing. 2(9 + 3) = 2 * (9 + 3). The multiplication symbol is implied when you put a number beside the parentheses.

[yyz monkey]

BEDMAS - Brackets Exponents Division Multiplication Addition Subtraction

48÷2(9+3)

B = 48÷2(12)
E = None to do
D = 24(12)
M = 288
A = None to do
S = None to do

[Nark]

2(9+3) is the same as (2(9+3))

PEDMAS tells you to do parenthesis first, which includes the 2 outside. THEN you can enter in 48 to finish the equation.

Thus: 2.

[wowo]

No because like I said, there is an implied multiplication between the 2 and the parentheses.

Rewrite it as 48 / 2 * (9 + 3). Really, this is grade 5 level math.

[wowo]

haha, try googling it: http://www.google.com/search?source=ig& ... e329db349f

Btw, google says 288 too: http://www.google.com/search?source=ig& ... e329db349f

Looks like this isn't the only interweb debate about this. Nice one pilotsteve!

[cdnpilot77]

haha, try googling it: http://www.google.com/search?source=ig& ... e329db349f

Btw, google says 288 too: http://www.google.com/search?source=ig& ... e329db349f

Looks like this isn't the only interweb debate about this. Nice one pilotsteve!

YES!!!

[trampbike]

I'm not a math major, and it doesn't matter because there can't be any authority argument regarding arithmetics...

It would give 2 if it was written 48÷[2(9+3)]

Written 48÷2(9+3), it gives 288, end of the story.

[cdnpilot77]

I'm not a math major, and it doesn't matter because there can't be any authority argument regarding arithmetics...

It would give 2 if it was written 48÷[2(9+3)]

Written 48÷2(9+3), it gives 288, end of the story.

This one is correct

Edit: forget it...im done on this one

[trampbike]

2(9+3) is the lazy mathematician way of writing (2x9 +2x3).

True

Then you divide 48 by that answer.

False. You have to work from left to right, so it's more like you would distribute 24 over (9+3). 24*9+24*3=288 yaaaayy
(hint for some of you who voted "2": I got 24 by doing 48/2)

Thank goodness we have FMS's to calculate descents and crossing restrictions.

Thanks indeed, and I hope you use that tool well.

[ArcticKat]

http://www.webmath.com/crunchnumnovar.html

It's 288.

The problem to solve is:

48/2(9+3)

48/2 evaluates to 24

9+3 evaluates to 12

Multiply 24 and 12

1

48/2*(9+3) evaluates to 288

The final answer is
288

[Expat]

2

Math for Morons:

http://www.sosmath.com/algebra/solve/so ... 6/s16.html

[ArcticKat]

2

Math for Morons:

http://www.sosmath.com/algebra/solve/so ... 6/s16.html

288, but that's okay, I don't care that you're wrong.

[trampbike]

... it's getting depressing.

Expat, if your brain can't process basic arithmetic rules, then take a calculator and type 48÷2*(9+3). If you get the answer 2, throw that broken calculator away. Also, you do realise that the website link you posted has nothing to do with the original "problem" right?

[Expat]

... it's getting depressing.

Expat, if your brain can't process basic arithmetic rules, then take a calculator and type 48÷2*(9+3). If you get the answer 2, throw that broken calculator away. Also, you do realise that the website link you posted has nothing to do with the original "problem" right?

Hey, my brain can process enough to make a great living...
But in my book, 48/24=2

...and 18+6=24...
So what's twisting your ...?

[paddy]

If 48/2x=2
Where x = 12
and 12 = 9+3
then 2x = 24
48/24 = 2

QED

[paddy]

No you're right. It's the same thing. 2(9 + 3) = 2 * (9 + 3). The multiplication symbol is implied when you put a number beside the parentheses.

The answer is the same but the operation is not; though 2x = 2*x the difference is 2x is one number while 2*x has two, both the x and the 2, this is why the order of operation is to complete the 2x prior to the division.

[ArcticKat]

If 48/2x=2
Where x = 12
and 12 = 9+3
then 2x = 24
48/24 = 2

QED

Wrong. There is no "x" in the equation. Left to right, not right to left. 48/2 = 24(12)
24 X 12 = 288

But I don't expect you to agree, you have the right to be wrong.

[kevind]

But earlier..it was said you work from left to right

48 / 2 = 24

24 * (9+3) becomes 24 * 12 because you do the logic in the ()'s first

24 * 12 = 288

Paddy did the * before the / in his answer

If 48/2x=2
Where x = 12
and 12 = 9+3
then 48/2 = 24
then 24 * 12 = 288

[paddy]

x is used in math as a place holder for an unknown

If you agree that 48/2x=2 where x = 12 then the same process must be applied when x is known, in this instance (9+3)

[Expat]

x is used in math as a place holder for an unknown

If you agree that 48/2x=2 where x = 12 then the same process must be applied when x is known, in this instance (9+3)

Chapeau!
ex

[ArcticKat]

x is used in math as a place holder for an unknown

If you agree that 48/2x=2 where x = 12 then the same process must be applied when x is known, in this instance (9+3)

Then you're using your placeholder wrong. Because there is no unknown.

In this case the unknown is actually the answer to the equation, so it should read 48/2(9+3) = X

48/2=x Not 48/2x

Thus 24=x

If you insist on using needless placeholders in the middle of a perfectly good equation.

What you're thinking is algebra.

2x=12, what is X?

12/2 = x
12/2 = 6
therefore 6 = x
2(6) = 12

[paddy]

x is used in math as a place holder for an unknown

If you agree that 48/2x=2 where x = 12 then the same process must be applied when x is known, in this instance (9+3)

Then you're using your placeholder wrong. Because there is no unknown.

48/2=x Not 48/2x

Thus 24=x

If you insist on using needless placeholders.

What you're thinking is algebra.

2x=12, what is X?


In this case the unknown is actually the answer to the equation, so it should read 48/2(9+3) = X

12/2 = x
12/2 = 6
therefore 6 = x
2(6) = 12

You clearly missed the point!

[ArcticKat]

You clearly missed the point!

No I didn't, I just gave an example of how to properly use your "place holder"

No worries, I'm not here to defend my position because I know I'm right, just like you know that you're right. I'm just trying to reassure those who are beginning to question themselves that they are correct that 288 is the right answer.

Edit:
I'll make you guys a deal, go to a local 5th grade math teacher with this equation and ask them to solve it for you. I will do the same. I am willing to expose myself to the embarrassment of having to ask my kid's math teacher to solve this equation even though I know quite well how to solve it if you are also. Then, when you get an education and an answer of 288 i expect you to come back here and publicly proclaim that you were wrong.

If I get an education and the answer is 2, I will do the same.

Of course, I am expecting you to be honourable gents and be honest when you are proven to be mistaken.

[paddy]

(quote)Then you're using your placeholder wrong. Because there is no unknown.

[/quote]

My example was not to try and insert a place holder, but to explain order or operation, thus you did miss the point. I do agree that in the question above the unknown or x would be the answer or more specifically 2.

[ArcticKat]

x is used in math as a place holder for an unknown

My example was not to try and insert a place holder,

Now you're just arguing with yourself.