48÷2(9+3)

[Stefan]

I'm still waiting for an answer on this one.

No he would not.

[kenz]

Originally Posted by Racecraft

but once you have performed the bracketed sum .... the brackets are goneski

there is only one set of brackets in the op...

do that first

they are gone and replaced with a number

now do the sum L_______>R

but if you do that then the sum reads 48 / 2 12, the multiply is not shown for a reason so it would turn into 48/2(12)
there is a difference between 48/2(9+3) and 48/2*(9+3)

[NC1183]

Originally Posted by Racecraft

but once you have performed the bracketed sum .... the brackets are goneski

there is only one set of brackets in the op...

do that first

they are gone and replaced with a number

now do the sum L_______>R

In which case results in you changing the equation, because the 2 in front of the brackets without a symbol between means multiplication of what is inside the brackets.

[TheSneakiness]

This still going?

Blah blah blah, do this, do that. Funny when a thread like this gets such a response. People mustn't have anything to do in their lives? Makes me wonder sometimes.

Plane vs. treadmill again?

And before anyone responds with a smart comment, I only posted in here again cause I thought this would've died by now before I head off to Never Never Land...

[99AUXR]

48/2(9+3)
=48/2x12
48/2=24
24x12=288

48x12/2
48x12=576
576/2=288

[351@GT]

Originally Posted by jonesyedxr6

Because everyone who agrees with the answer being 2, believes that

a(b)

is not the same as

a x b

they are the same in isolation

but .....

c / a(b) does not = c / a x b ,

however a(b) / c does = a x b / c

[99AUXR]

Originally Posted by 351@GT

and how does this work???

48/2(9+3)
=48/2x12
48/2=24 -----should be 48/2x12 = 48/24 = 2
24x12=288

48/2(9+3)
=48/2x12
Then 48/2 is the next step giving 24 then multiply by 12
24x12=288

In the example in straight line form, parentheses are first before anything else. If the intent was for the 2(9+3) to all be in the denominator, then the correct procedure would be to put parentheses around the whole term. The absence means that you proceed left to right.

[SLO AU XR8]

2(9+3)= 24

48/24 = 2

[351@GT]

over it now ;p

still think the bracket with its number outside is a basic equation by itself with or without the extra brackets...

= 2 !!

have fun.

[SEZ213]

Originally Posted by NC1183

What you mean by other forms of calculations???

I mean other than a Calculator? google, the calculator on your mobile phone?

Originally Posted by 351@GT

they are the same in isolation

but .....

c / a(b) does not = c / a x b ,

however a(b) / c does = a x b / c


and how does this work???

48/2(9+3)
=48/2x12
48/2=24 -----should be 48/2x12 = 48/24 = 2
24x12=288

The answer lies - right here...

Originally Posted by sezzy

The fact there is no 'x' doesn't weigh into it at all as:

Multiplication can be written three different ways:

9 * x
9x
9(x)

http://library.thinkquest.org/20991/prealg/eq.html

division or multiplication are answered in order of which comes first (left to right).

[Stefan]

Originally Posted by flappist

If the answer is 2 but all of the software and systems show 288 then the legal ramifications are beyond spectacular. All the "experts" here can make bazillions suing Microsoft for damages......off you go.....

The formula cannot be entered in excel as it is written, so you are not calculating the formula as it is notated, you are entering a completely diffent formular to arrive at the wrong answer of 288.

Anyway being so clever and being able to multiply and divide three digit numbers in your head why are you referring to excel to confirm your answer?

Enjoy suing microsoft.....Have you ever heard of the phrase "User Error"?

[flappist]

Originally Posted by Stefan

No he would not.

So what is your explanation as to why software used commercially and therefore legally required to be correct disagrees with you?

Beat me to it....

Yep you are definitely an academic.

http://www.google.com.au/#hl=en&sour...9c110710cf88e6

In theory, theory and reality are the same but in reality they usually are not.
Unfortunately this is only ever really understood by people who have more to do with reality than theory....

[SteveJH]

Originally Posted by 99AUXR

48/2(9+3)
=48/2x12
Then 48/2 is the next step giving 24 then multiply by 12
24x12=288

In the example in straight line form, parentheses are first before anything else. If the intent was for the 2(9+3) to all be in the denominator, then the correct procedure would be to put parentheses around the whole term. The absence means that you proceed left to right.

Yep.

48/2(9+3) = 48/2*12 = 24*12 = 288

If it was 48/(2(9+3)) it would be another matter.

In this case though, the equation is effectively (48/2)*(9+3)

[SteveJH]

Originally Posted by Stefan

The formula cannot be entered in excel as it is written, so you are not calculating the formula as it is notated, you are entering a completely diffent formular to arrive at the wrong answer of 288.

Yes it can.

Type into excel the following:

=48/2*(9+3)

Surprise, surprise....the answer comes out as 288..

And yes, 48/2*(9+3) is the same as 48/2(9+3)

Edit: Does this Graphical representation help?

[SEZ213]

Originally Posted by Stefan

The formula cannot be entered in excel as it is written, so you are not calculating the formula as it is notated, you are entering a completely diffent formular to arrive at the wrong answer of 288.

Anyway being so clever and being able to multiply and divide three digit numbers in your head why are you referring to excel to confirm your answer?

Enjoy suing microsoft.....Have you ever heard of the phrase "User Error"?

My grade 5 maths tells me it's 288...
The google calculator tells me it's 288
Sony tells me it's 288
in fact, everything I own, tells me it's 288...

How are you right, and everything commercially available is wrong?

[99AUXR]

Originally Posted by SteveJH

Yep.

48/2(9+3) = 48/2*12 = 24*12 = 288

If it was 48/(2(9+3)) it would be another matter.

In this case though, the equation is effectively (48/2)*(9+3)

exactly, its the error of straight line notation if it was written like or


it would be easy

[ST]

Originally Posted by Stefan

No he would not.

Well done, not many people own up to their fraudulent claims so quickly.

[Rodp]

Originally Posted by SteveJH

Yes it can.

Type into excel the following:

=48/2*(9+3)

Surprise, surprise....the answer comes out as 288..

And yes, 48/2*(9+3) is the same as 48/2(9+3)

Edit: Does this Graphical representation help?

I've got a graphical representation as I posted earlier in the thread. It's open to interpretation, hence the debate on more than 1 forum. 48/2*(9+3) isn't necessarily the same as 48/2(9+3). You'd have to ask the source of the question as to their intention. To suggest one answer is definitively correct is wrong.

[Stefan]

Originally Posted by SteveJH

Yes it can.

Type into excel the following:

=48/2*(9+3)

Surprise, surprise....the answer comes out as 288..

And yes, 48/2*(9+3) is the same as 48/2(9+3)

Edit: Does this Graphical representation help?

You added a "*" in the formula....try entering it AS IT IS WRITTEN. It does not work.

And yes, 48/2*(9+3) is the same as 48/2(9+3)

No it is not the same

[flappist]

Originally Posted by Stefan

You added a "*" in the formula....try entering it AS IT IS WRITTEN. It does not work.



No it is not the same

Did you look at my link?

http://www.google.com.au/#hl=en&sour...9c110710cf88e6

Or are they wrong too......

[Stefan]

Originally Posted by ST

Well done, not many people own up to their fraudulent claims so quickly.

Well done, you misinterpreted my answer much like you misinterpreted the formula. You are a real success story.

[99AUXR]

Originally Posted by Rodp

To suggest one answer is definitively correct is wrong.

i would disagree and say if people followed the rule read from left to right in straight line notation the answer would be 288 as
2*(9+3) IS THE SAME AS 2(9+3)

anyway been in this thread too long my school term ended today so im on holiday. have fun.

http://www.google.com.au/webhp?hl=en...9c110710cf88e6

and

http://www.google.com.au/webhp?hl=en...9c110710cf88e6

[Iggypoppin']

Originally Posted by Stefan

You added a "*" in the formula....try entering it AS IT IS WRITTEN. It does not work.



No it is not the same

Yes it is.
As written 2(x means you multiply x by 2. You don't need a multiplication sign there to signify it.

[SEZ213]

Originally Posted by Stefan

You added a "*" in the formula....try entering it AS IT IS WRITTEN. It does not work.



No it is not the same

How is that not the same? Using basic primary school maths?

and what about my other question...?

[SteveJH]

2(9+3) = 2*(9+3) = 2*(12)=24

or.

2(9)+2(3)

However, in the case of this equation we have two separate parts.

We have the 48/2 and we have the (9+3). They are two distinct parts of the equation.

If the equation was written as 48/(2(9+3) then it would expand out as 48/(2(9)+2(3)), however it is not written that way.

Instead it is written as 48/2(9+3). Which breaks down the way myself, 99AUXR and a ton of other people have also said.

Edit: Where do you lecture Mathematics?

[Stefan]

Originally Posted by flappist

Did you look at my link?

http://www.google.com.au/#hl=en&sour...9c110710cf88e6

Or are they wrong too......

What exactly does this prove? You enter one formula and Google "corrects" it into a different formula.

Many students do really well when the study Google instead of their lecture notes.

[99AUXR]

Originally Posted by SteveJH

If the equation was written as 48/(2(9+3) then it would expand out as 48/(2(9)+2(3)), however it is not written that way.

Instead it is written as 48/2(9+3). Which breaks down the way myself, 99AUXR and a ton of other people have also said.

Edit: Where do you lecture Mathematics?

exactly.

and duno but i hope not canterbury uni

[Geez Louise]

How has this thread gotten to 8 pages?? You guys crack me up!

I have sent this question off to a friend in England. She is a member of Mensa and a Mathematician. I have asked her to explain in detail what the answer is and the method in how she would arrive at it.

This is more for my warped curiosity rather than anything else. Nothing like having a brainiac give it a crack!

[Stefan]

Originally Posted by Iggypoppin'

Yes it is.
As written 2(x means you multiply x by 2. You don't need a multiplication sign there to signify it.

And when the 2 precedes a bracketed equation it too becomes a bracketed equation, and you do not need to show the brackets.

[SteveJH]

Originally Posted by Stefan

And when the 2 precedes a bracketed equation it too becomes a bracketed equation, and you do not need to show the brackets.

Reference please.

And i'm still waiting on which university you lecture at.

Edit: isnt that only when preceded by a + or - sign since * has precedence over addition or subtraction?