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View Poll Results: What is the answer?
2 26 47.27%
288 29 52.73%
Voters: 55. You may not vote on this poll

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Old 04-10-2011, 10:34 AM   #31
2slow2race
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Quote:
Originally Posted by Axxe View Post
My Ti-83+ says 288.
yup. that is the final answer. gotta love the TI.

i am enjoying reading el gato liso's comments thou. haha
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Old 04-10-2011, 11:31 AM   #32
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Originally Posted by 2slow2race View Post
yup. that is the final answer. gotta love the TI.

i am enjoying reading el gato liso's comments thou. haha
ORLY?!



Enjoy.
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Old 04-10-2011, 12:11 PM   #33
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the plot thickens...
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Old 04-10-2011, 12:21 PM   #34
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LIES ALL LIES

What is the answer, I demand to know from a math majore
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Old 04-10-2011, 12:30 PM   #35
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El Gatso, does multiplying the parenthesis supercede the division?
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Old 04-10-2011, 12:39 PM   #36
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Quote:
Originally Posted by El Gato Liso View Post
i knew you were going to say that captain obvious. i will explain....

there is a lack of brackets in that equation. there is not double standard at all.

BEDMAS says Division first, so 42/2=21, the Multiply next, 21*10 =210

if it were 42/2(10) then i would have treated the equation like a fraction...do brackets first then divide. 42/20 = 2.1

multipication and division roll together. addition and subtraction roll together.
BEDMAS doesn't say division is first. Division does not get priority over the multiplication, just like addition does not get the priority over the subtraction.

According to the order of operations, you do stuff IN the brackets first. Once you've done 9+3 the brackets are gone, there is no need for them anymore.
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Old 04-10-2011, 01:14 PM   #37
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Originally Posted by Axxe View Post
48/2(9+3) = (48/2)(9+3) = 288
48/2(9+3) = 48/(2(9+3)) = 2

Live happy knowing that both are right, and that this question is too vague.
Final answer. There is no nerd to argue.
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Old 04-10-2011, 01:19 PM   #38
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Originally Posted by sirex View Post
maybe a better way of looking at it for your el gatso, and a way that might make more sense is in a more complicated way.


48 / 2x

where x = 12


48/2x = 24x

You would still divide by 2 first to simplify.

24(12) = 288.

after you've simplified, then you can multiple the x.
48/2x is 24/x

48/2*x is 24x
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Old 04-10-2011, 01:21 PM   #39
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Quote:
Originally Posted by SickFinga View Post
BEDMAS doesn't say division is first. Division does not get priority over the multiplication, just like addition does not get the priority over the subtraction.

According to the order of operations, you do stuff IN the brackets first. Once you've done 9+3 the brackets are gone, there is no need for them anymore.
if you have 2(9+3) and as you said the brackets are gone once you do the math....you will have 2(12). the brackets dont go anywhere!!!!!

if the brackets were gone...you'd have 2*whats between these 2 numbers?*12. you cant make that up now can we.

the brackets are mandatory as it is indicating multiplication 2 x 12 = 2(12).

order of operation indications brackets first....but it implies ANYTHING to do with the brackets! ex. 2(9+3) you can treat as 2X. in this case, multiplication IS part of the brackets.
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Old 04-10-2011, 01:37 PM   #40
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example:

48/(2a+2b) = 48/2(a+b) [factoring out the 2] =! 24(a+b)


48/(2a+2b) IS NOT EQUAL TO 24(a+b) ! What do you guys not understand? You can't separate the 2(9+3)!
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Old 04-10-2011, 01:46 PM   #41
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Let's say the question is 48/24 = 2
Splitting up the denominator: 48/(18+6) = 2
Factoring out a 2 from denominator: 48/2(9+3) = 2. You guys are going to tell me that it equals 288? When all I did was factor out a 2 in the denominator? How can you say that 2 became 288, it doesn't make sense.

There is a difference between 48/2(9+3) and 48/2*(9+3).

Last edited by LOSO; 04-10-2011 at 01:49 PM.
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Old 04-10-2011, 01:50 PM   #42
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2 is part of (9+3)

in order for 48/2 to work it should be (48/2)(9+3) = 288

48/2(9+3)

x = (9+3)

so, 48/2x. how you guys decide to do 48*2 divided x....i have no idea.........
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Old 04-10-2011, 01:53 PM   #43
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Originally Posted by sirex View Post
What is the answer, I demand to know from a math majore
Right here. Answer has been given.
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Old 04-10-2011, 01:59 PM   #44
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Quote:
Originally Posted by El Gato Liso View Post
if you have 2(9+3) and as you said the brackets are gone once you do the math....you will have 2(12). the brackets dont go anywhere!!!!!
The brackets just mean multiplication.

42/2(10) is the same as 42/2*10.

Here is a quote from wikipedia
http://en.wikipedia.org/wiki/Order_o..._of_operations
Quote:
terms inside brackets
exponents and roots
multiplication and division
addition and subtraction

Quote:
Originally Posted by LOSO View Post
Let's say the question is 48/24 = 2
Splitting up the denominator: 48/(18+6) = 2
Factoring out a 2 from denominator: 48/2(9+3) = 2. You guys are going to tell me that it equals 288? When all I did was factor out a 2 in the denominator? How can you say that 2 became 288, it doesn't make sense.
If you want to factor out the denominator out of 48/(18+6) then you would have to write it as 48/(2(9+3)) or
482(9+3)





Quote:
Originally Posted by LOSO View Post
There is a difference between 48/2(9+3) and 48/2*(9+3).
There is absolutely no difference between these two.
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Old 04-10-2011, 02:02 PM   #45
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Right here. Answer has been given.
so it was 288?
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