Author Topic: the math apocalypse: 48�2(9+3) = ? (Read 16198 times)

Oasis · September 20, 2014, 12:53:19 AM

If you think its anything other than 288, you are simply wrong.

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Starzy · September 20, 2014, 12:54:25 AM

Quote from: Oasis on September 20, 2014, 12:53:19 AM

If you think its anything other than 288, you are simply wrong.

You sir are wrong, look on page 9.

Foxscotch · September 20, 2014, 12:56:53 AM

Quote from: Starzy on September 20, 2014, 12:47:38 AM

"Depending on whether one interprets the expression as (48/2)(9+3) or as 48/(2(9+3)) one gets 288 or 2. There is no standard convention as to which of these two ways the expression should be interpreted, so, in fact, 48/2(9+3) is ambiguous. To render it unambiguous, one should write it either as (48/2)(9+3) or 48/(2(9+3)). This applies, in general, to any expression of the form a/bc : one needs to insert parentheses to show whether one means (a/b)c or a/(bc). "

parentheses come first

Starzy · September 20, 2014, 12:59:34 AM

Quote from: Foxscotch on September 20, 2014, 12:56:53 AM

parentheses come first

Read it again, it's ambiguous meaning one needs to put in parenthesis to show whether it comes out as 2 or 188 there is no inbetween,
solution = the maths equation is incomplete.

Ayxrion · September 20, 2014, 01:05:10 AM

it has to be two.

i'm guessing people forget up after they finish 9+3

48�2(12)

you gotta remove the damn parenthesis
48�24
its two.

McJobless · September 20, 2014, 01:10:18 AM

Quote from: Ayxrion on September 20, 2014, 01:05:10 AM

i'm guessing people forget up after they finish 9+3

You sure did, because it's 288.

You remove the parenthesis, and then DIVIDE since it's the first of the multiplication/division operations in the equation. Then you finally multiply the two remaining numbers.

BlockoCrafter · September 20, 2014, 01:11:43 AM

Honestly, if you punch these numbers into a virtual graphing calculator, you'll get 288.

#Ravencroft · September 20, 2014, 01:12:00 AM

Quote from: Ayxrion on September 20, 2014, 01:05:10 AM

it has to be two.

i'm guessing people forget up after they finish 9+3

48�2(12)

you gotta remove the damn parenthesis
48�24
its two.

You would only multiply two and twelve if 2(12) was in parentheses. Otherwise you solve the equation straight across. Order of operations does not apply at this point because multiplication and division are considered equal, same can be said about addition and subtraction. You don't do 2(12) first because "pemdas" says so, you solve the equation from left to right.

Go back to elementary school kid.

Skip · September 20, 2014, 03:59:14 AM

Since I see plenty of asshattedness about this I'm just gonna stick with 2.

Kishgal · September 20, 2014, 04:05:53 AM

this is incredible

Kingdaro · September 20, 2014, 04:09:49 AM

I don't see why people would still say 2 at this point.

danisaac5 · September 20, 2014, 04:12:08 AM

2x(9+3)=24
48/24=2
There's your answer.

Kishgal · September 20, 2014, 04:17:08 AM

Quote from: Kingdaro on September 20, 2014, 04:09:49 AM

I don't see why people would still say 2 at this point.

i've incidentally yet to see a real calculator say 2

Kingdaro · September 20, 2014, 04:19:04 AM

Quote from: danisaac5 on September 20, 2014, 04:12:08 AM

2x(9+3)=24
48/24=2
There's your answer.

brother ARE YOU ACTUALLY

Quote from: Kishgal on September 20, 2014, 04:17:08 AM

i've incidentally yet to see a real calculator say 2

Yeah...

danisaac5 · September 20, 2014, 04:21:28 AM

Quote from: Kishgal on September 20, 2014, 04:17:08 AM

i've incidentally yet to see a real calculator say 2

Its to do with the way calculations are worked out, America used PEMDAS, England uses BODMAS (division before multiplication), but we work out whats in the brackets (parenthesis?) first.

Quote from: Kingdaro on September 20, 2014, 04:19:04 AM

brother ARE YOU ACTUALLY

Yes. It is how I was taught to do this kind of calculation, so that is my answer.

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48�2(9+3) = ?

Author Topic: the math apocalypse: 48�2(9+3) = ? (Read 16198 times)

Oasis

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Starzy

Foxscotch

Starzy

Ayxrion

McJobless

BlockoCrafter

#Ravencroft

Skip

Kishgal

Kingdaro

danisaac5

Kishgal

Kingdaro

danisaac5