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View Poll Results: 482(9+3)=?
288 41 45.56%
2 49 54.44%
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482(9+3)=???

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Old 04-08-11, 08:02 AM   #31
4TehNguyen
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no its 2, type it into any graphing calculator and its 2. The only way to get 288 is if you perform the division and multiplication BEFORE parenthesis. You are not allowed to do that. Parenthesis are always first
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Old 04-08-11, 08:11 AM   #32
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Quote:
Originally Posted by 4TehNguyen View Post
no its 2, type it into any graphing calculator and its 2. The only way to get 288 is if you perform the division and multiplication BEFORE parenthesis. You are not allowed to do that. Parenthesis are always first
That's what I was taught as well so I made it 2 (but then it was a long time ago...).
EDIT: I've changed my mind. Writing it down properly as 48/2*(9+3) I can see it's 288. You still do the parethesis first but then it's 48/2 multiplied by 12.

Last edited by Big Andy; 04-08-11 at 09:14 AM.
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Old 04-08-11, 08:23 AM   #33
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So, let me get this straight....we're doing algebra, on a Friday. Hell no, my schooling days on any Friday ended in HS. lol But I answered 288. I was taught PEMDAS, with multiplication/division and addition/subtraction being of equal weight in any mathematical equation. Left to right was how we were taught to deal with these sort of things. Very cool brain teaser, if you will, to start the day.
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Old 04-08-11, 08:41 AM   #34
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I got 288 and M$ Excel calculated 288 as well. Go back to school you dingbats.
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Old 04-08-11, 08:50 AM   #35
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We can all agree that the parentheses are solved first, which leaves:

482(12) which equals 482x12

Those claiming "left to right" are correct in that the answer is 288.

In reality, and not third-grade order of operations, the 2 has two equal potential actions and it should have a parentheses around the intended next function. Digitization has rendered the traditional "left to right" somewhat irrelevant, and orders need to be expressed explicitly.

I get the feeling the OP is an accountant at GM...

"is our profit 2 or 288? I'll ask on the forum...."

HAHA
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Old 04-08-11, 08:51 AM   #36
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7 because that's the answer to the universe.
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Old 04-08-11, 08:53 AM   #37
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Quote:
Originally Posted by 4TehNguyen View Post
if you dont believe us just type the equation into any graphing calculator. They are designed to perform this PEMDAS method
My TI-83+ says it's 288

My calculator is broken.
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Old 04-08-11, 09:40 AM   #38
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How I picture it:

48/ 2(9+3)

which becomes...

48/ 2(12)

24(12)

288

The way I'm seeing it is that the 9+3 is NOT underneath the division part of the equation. If it were, then the equation wouldn't be 48/2(9+3) but would instead be 48/(2(9+3)). I think this is where many people are getting confused in their operations. Then again I hate math with a passion, took me till middle-school to figure out %'s......
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Old 04-08-11, 09:43 AM   #39
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Quote:
Originally Posted by GSteg View Post
My TI-83+ says it's 288

My calculator is broken.
typed it in my casio and it gave me 2

now im seeing how its 288. Head hurts now
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Old 04-08-11, 09:54 AM   #40
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Quote:
Originally Posted by muhbuhtuh View Post
my answer is 2 as well. but i can see how the answer can be 288. but is 288 really the answer?
Quote:
Originally Posted by 4TehNguyen View Post
no its 2, type it into any graphing calculator and its 2. The only way to get 288 is if you perform the division and multiplication BEFORE parenthesis. You are not allowed to do that. Parenthesis are always first
Quote:
Originally Posted by Big Andy View Post
That's what I was taught as well so I made it 2 (but then it was a long time ago...).
EDIT: I've changed my mind. Writing it down properly as 48/2*(9+3) I can see it's 288. You still do the parethesis first but then it's 48/2 multiplied by 12.
I got 2 as well, remembering back in the old days

and I always "remembered" division as having the least priority

I'm going to be tutoring my kids later on and I better get this straight
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Old 04-08-11, 10:02 AM   #41
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Quote:
Originally Posted by KillaIS250 View Post
If you look at the "input" here its different. Now its a fraction "48/2" multiplied by (9+3).

In longer syntax I came up with 2 because the division sign appears to isolate 48, but in fraction syntax it is clearly 288. You feel like when it is in the longer syntax that you are doing it out of order, but you are really just doing it wrong period.
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Old 04-08-11, 10:06 AM   #42
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Quote:
Originally Posted by 4TehNguyen View Post
if you dont believe us just type the equation into any graphing calculator. They are designed to perform this PEMDAS method

The answer is 2
When you get to 48/2*12, why are you doing the multiplication first? Multiplication and division have equal weight. Once you get to this stage, you go left to right, leaving you with 288.

Quote:
Originally Posted by 4TehNguyen View Post
no its 2, type it into any graphing calculator and its 2. The only way to get 288 is if you perform the division and multiplication BEFORE parenthesis. You are not allowed to do that. Parenthesis are always first
TI89 Titanium says it's 288, u mad? The only way to get 2 is to put in parenthesis that aren't there already. You are not allowed to do that. 48/(2(9+3)) = 2, but 48/2(9+3)=288.

Quote:
Originally Posted by Jewcano View Post
How I picture it:

48/ 2(9+3)

which becomes...

48/ 2(12)

24(12)

288

The way I'm seeing it is that the 9+3 is NOT underneath the division part of the equation. If it were, then the equation wouldn't be 48/2(9+3) but would instead be 48/(2(9+3)). I think this is where many people are getting confused in their operations. Then again I hate math with a passion, took me till middle-school to figure out %'s......
This


edit: OLT votes 288, win
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Old 04-08-11, 10:10 AM   #43
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What people are not visualizing that is screwing them up is this:

48 / 2 * (9+3) =
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Old 04-08-11, 10:48 AM   #44
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I initially went with 2 because I multiplied after adding 9 and 3 first. But calculation should be from left to right so 288 should be the correct answer.
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Old 04-08-11, 11:19 AM   #45
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Seriously people. Just stop it xD
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