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48÷2(9+3) = ?

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phreakazoid
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Re: 48÷2(9+3) = ?

Postby phreakazoid » April 15th, 2011, 6:05 pm

What i'm trying to say is why not write it as 48/[2(9+3)]= and make life simpler for everyone?
It's like telling someone something and being very vague about it.

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Re: 48÷2(9+3) = ?

Postby Stephon. » April 15th, 2011, 6:12 pm

Yeah but people that paid attention in class will get it right.

Right = 288 OR
288 = Right

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Re: 48÷2(9+3) = ?

Postby rollingstock » April 15th, 2011, 6:22 pm

Persons still working out the brackets and leaving it in the equation.

They're getting 48÷2(12)

It's supposed to be 48÷2x12

Once teh value inside the brackets have been calculated the brackets must be removed.

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Re: 48÷2(9+3) = ?

Postby Stephon. » April 15th, 2011, 6:46 pm

"d answer is 2 bai i get ah distinkshon in matts"
Last edited by Stephon. on April 15th, 2011, 6:47 pm, edited 1 time in total.

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Re: 48÷2(9+3) = ?

Postby Bizzare » April 15th, 2011, 6:46 pm

phreakazoid wrote:What i'm trying to say is why not write it as 48/[2(9+3)]= and make life simpler for everyone?
It's like telling someone something and being very vague about it.


Well isn't that what this whole thread is about? Basically the argument is about how the equation should be read. As:
48/[2(9+3)] OR (48/2)(9+3)........

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Stephon.
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Re: 48÷2(9+3) = ?

Postby Stephon. » April 15th, 2011, 6:55 pm

It should be read as 48÷2(9+3).

What is so hard in that? Why does it need oversimplification? But to make life easier

(48/2)(9+3)

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Re: 48÷2(9+3) = ?

Postby Quicksilver » April 15th, 2011, 8:17 pm

These religious threads could go on forever

something very simple is stated improperly and left to interpretation... everyone is right and all others are wrong, yet no one knows what is the objective of the calculation in the first place... :lol:

look at it from a simplistic pov and see the ambiguity. :|
doh beatup :D

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Re: 48÷2(9+3) = ?

Postby Stephon. » April 15th, 2011, 8:18 pm

:| :| :|

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Re: 48÷2(9+3) = ?

Postby rollingstock » April 15th, 2011, 8:50 pm

Stephon. wrote:"d answer is 2 bai i get ah distinkshon in matts"


I onlee geh ah distinkshon in add matts :?

I cyah subtrack, divise or mulitfly :roll:

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Re: 48÷2(9+3) = ?

Postby TK! » April 16th, 2011, 1:20 am

ghostbusters wrote:
a(b) = a.b = a*b


does that mean 2(3)---which is clearly =2.3=2*3?
cus if ur saying that then u cant say 8÷2(3)=12, cus is clearly 8÷6.


No... the rule is BODMAS

the brackets mean to eval what's IN the brackets.
then remove the brackets to get 8÷2x3
then (using the same BODMAS rule) eval 8÷2
then eval 4x3 = 12

always keep in mind that you apply the same BODMAS rule at each step.
it's just that your expression will get short and shorter but the basic rule of arithmetic still applies.

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Re: 48÷2(9+3) = ?

Postby TK! » April 16th, 2011, 1:31 am

this can also be approached using a simple year one programming algorithm that converts infix expressions into postfix and then evaluates it. there are countless sources for this online.

there are also a few online calculators. eg: http://calc.hiddentao.com/

and then there's google's calculator. just copy and paste the expression in google and hit search. the calc will return the result as 288.

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Re: 48÷2(9+3) = ?

Postby Ronaldo95163 » April 16th, 2011, 2:13 am

The answer is 288 Because

48/2(9+3) =

48/2 = 24(9+3)

Eq is therefore now 24(9+3)

Simple expansion of brackets will give you the answer

Therefore it will be everything outside the brackets (24) multiplied by everything inside the brackets (9+3)

24x9 = 216
24x3 = 72

Now since we've expanded the brackets the equation will now be:

216 + 72 = 288

:D

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Re: 48÷2(9+3) = ?

Postby Trini Hookah » April 16th, 2011, 2:23 am

8 pages to fail at what any good ol' Sharp calculator can do?

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Re: 48÷2(9+3) = ?

Postby matthewmazda » April 17th, 2011, 9:29 pm

so allu cant remember BODMAS

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Re: 48÷2(9+3) = ?

Postby ~Vēġó~ » April 18th, 2011, 12:40 am

is still 2....

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Re: 48÷2(9+3) = ?

Postby Ronaldo95163 » April 18th, 2011, 9:17 am

~Vēġó~ wrote:is still 2....

88

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Re: 48÷2(9+3) = ?

Postby Strauss » April 18th, 2011, 3:02 pm

TK! wrote:No... the rule is BODMAS

the brackets mean to eval what's IN the brackets.
then remove the brackets to get 8÷2x3
then (using the same BODMAS rule) eval 8÷2
then eval 4x3 = 12


This is where the mix-up starts.

We're taught to remove the brackets when it comes to computer programming.
Yet basic maths teach long ago to honor what is adjacent the brackets first (BODMAS still applies). That's why some calculators will give 2 and a computer will give 288 if the problem is written as is.

As I said before, because the 'question' is so vague, the answer is 288 if we apply present-day maths.

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Re: 48÷2(9+3) = ?

Postby Ronaldo95163 » April 18th, 2011, 8:04 pm

we were thought to expand the brackets. Hence the reason i divided 48 by 2 and expanded the brackets

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Re: 48÷2(9+3) = ?

Postby zcarz » April 18th, 2011, 11:18 pm

u guys still wrong.. ask any math teacher.. it's 288

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Re: 48÷2(9+3) = ?

Postby megadoc1 » April 18th, 2011, 11:19 pm


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Re: 48÷2(9+3) = ?

Postby Stephon. » April 18th, 2011, 11:19 pm

twelve minus six cloud?

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Re: 48÷2(9+3) = ?

Postby Strauss » April 19th, 2011, 8:28 am

The final answer is Mac.

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Re: 48÷2(9+3) = ?

Postby Stephon. » April 19th, 2011, 9:23 am

My iPad said 288, so yes you are in-fact correct Strauss.

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Re: 48÷2(9+3) = ?

Postby rollingstock » April 19th, 2011, 12:27 pm

Stephon. wrote:My iPad said 288, so yes you are in-fact correct Strauss.


4Q and yuh ipad, mih trinpad say 288 long time now :|

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Re: 48÷2(9+3) = ?

Postby Stephon. » April 19th, 2011, 12:30 pm

rollingstock wrote:
Stephon. wrote:My iPad said 288, so yes you are in-fact correct Strauss.


4Q and yuh ipad, mih trinpad say 288 long time now :|

Lmao 4Q. :lol:

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Re: 48÷2(9+3) = ?

Postby zcarz » April 24th, 2011, 4:22 am


all of you who thought it was 2, i hope you see the error of your ways now.. case closed.. this guy is a university professor, but it didn't really need to get to that extent if you applied basic rules of maths to the problem.

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Re: 48÷2(9+3) = ?

Postby Morpheus » April 24th, 2011, 4:42 am

Not surprisingly I heard both BODMAS and BOMDAS through schooling :?

288!

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Re: 48÷2(9+3) = ?

Postby Stephon. » April 24th, 2011, 11:22 am

@zcarz nice video :D

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Re: 48÷2(9+3) = ?

Postby hoverauto » April 25th, 2011, 12:29 am

Walks in thread.....wait nah, this still going on......walks out thread whispering: 'the answer is still 2'

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Re: 48÷2(9+3) = ?

Postby zcarz » April 25th, 2011, 12:36 am

^like u ain see the video or what?

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