48÷2(9+3)=?

2 `

Agree with Sora. Bit of a random topic ?

This is the off topic forum.:p
Anyone else got an answer?

I changed my mind, I'm going for 288 now because you calculate the contents of the brackets first, then the divide, then the multiply :)

Agree with Sora. Bit of a random topic ?

But are you sure?

I'm rarely sure about anything these days :)

But yes, I'm sure it's pretty random.

I changed my mind, I'm going for 288 now because you calculate the contents of the brackets first, then the divide, then the multiply :)

Then what made you say 2 ?

By the way goots 288 is what older people usually say.

Because before computers were common, we did the multiplication before the division, but still worked out the brackets first.

So it would be 9+3 = 12. 12 x 2 = 24. 48/24 = 2.

But since the introduction of computers, they still work out brackets first, but now it's commonplace to to the division first.

So it's 9+3 = 12. 48/2 = 24. 24 * 12 = 288.

I am pretty old btw.

lol - This is the most random one and off-topic to date!!!

Answer is 288.

Just follow BODMAS Guys.

Brackets.....Orders(power of, square roots)....Divide....Multiply.....Add.....Subtract :-D

Simples....!

Is that like Christmas for Bod? Do you even know who Bod is ?

wtf am I on about?

Just follow BODMAS Guys.

Brackets.....Orders(power of, square roots)....Divide....Multiply.....Add.....Subtract :-D


This is why I failed miserably at school. Too busy looking at the ladies :)

Is that like Christmas for Bod? Do you even know who Bod is ?

wtf am I on about?

The lions think it will be strawberry.

Less than 14% of people asked say Strawberry.

This is why I failed miserably at school. Too busy looking at the ladies :)

Toilets or dinner?

Toilets or dinner?

Unfortunate things to be confused about.

So much for my A level in maths, I'd forgotten all about BODMAS!

lol - you gotta love how random these off-topic's can get :-P

Unfortunate things to be confused about.

One follows the other. But not in that order.

Anyway, it's Goots who was in love with the dinner ladies, not me. He was deeply confused.

lol - I remember two of my dinner ladies we're fit!!!

All about my Art and maths teacher though....OHHHH YEAH!!!! :-P lolz

So. is Sora the only one that thinks its 2?

It's 288. Open the calculator app on your SGS, turn the phone to landscape to get the scientific calculator and type in the calculation followed by =. See, not so off topic after all.:cool:

288 for sure. Solve in the parenthesis and then go from left to right since the all that remains is * and /. http://www.wolframalpha.com/ is the best site to go to if you ever need to solve a difficult problem.

I agree with Soraxd myself and I am an older person

edit: However, I know I'm wrong as all the calculators disagree with me

9+3=12
2x12=24
48/24=2

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

lol lemme color code this

48/2(9+3)

(9+3)=12
2x12=24
48/24=2

xd see how i used teal to combine green and blue? see how clever i am


edit: oh snap someone replied before i wrote this, well in school i learned whatever is attached to the bracket is part of the same phrase, but i guess well see when someuser tells us the answer hehe

I am not clever enough to use color :(
48/2(9+3)
48/2*12
24*12=288

I tutor college math students every semester so I have to drill the rules into them.

1. Do all calculations within parentheses before operations outside.
2. Evaluate all exponential expressions.
3. Do all * and / in order from left to right.
4. Do all + and - in order from left to right.

I had to answer a math question for a friend his teacher gave to him. Solve for x:
(e^x + e^-x)/(e^x - e^-x)=3 O.o

well i now see the value of this question.. i posted this on facebook, and asked a few friends via text message and chat, and the answers are all over the place, while most of my friends say 2, a few have said 288, and one of the 288 answers was from a very respectable friend, who made a good argument, that PEMDAS was designed to explain a calculators processes, which how can you argue that.. the calculator says its so. but my response was the P is vauge, Parenthesis is anything inside of, or attached to. i still say the answer is 2, but i totally see the value in this question now..

look at the answers on this forum, its a physics forum, thatd be like someone coming to our forum and saying android doesnt exist, were the experts, how can you argue such a thing, and yet someone came to their physics forum and stirred up this same mess..
http://www.physicsforums.com/showthread.php?t=488334



we write fractions/division vertically, calculators only write horizontally


48
___ (9+3) =288
2

and

48
___ =2
2 (9+3)

calculators read it as two separate problems, 48/2 is written separately from 9+3, and not as a three dimensional math problem we do.

lol lemme color code this

48/2(9+3)

(9+3)=12
2x12=24
48/24=2

xd see how i used teal to combine green and blue? see how clever i am


edit: oh snap someone replied before i wrote this, well in school i learned whatever is attached to the bracket is part of the same phrase, but i guess well see when someuser tells us the answer hehe

I'm not the original poster - It's no Iphone was the one but I know it's 288 as most have said.

edit: I see your other message now Soraxd. No wonder I thought it was 2.

It would seem to me from the posts on here, notwithstanding Goots' ramblings on watching dinner ladies in the toilets, that 48÷2(9+3)= either...

A. An incorrectly written problem, or one that is incomplete
B. A problem that cannot be solved consistently due to lack of a definitive procedure
C. A + B

I can colour this in with crayons if required.

Google says it's 288 and Google is God. Just paste 48/2(9+3) into the search box and let it go forth and multiply...

I like the Russian way of multiplying where you place two numbers in columns and half the first number and double the second until you reach 1 (ignore the halves). Then ignore all rows with even numbers on the left and add up the numbers on the right in the other rows...

For example:

24 12
12 24
6 48
3 96
1 192

So, you ignore the first three rows (as 24, 12 and 6 are even) and add the 96 to the 192, giving 288.

Professor Yaffle

http://www.wolframalpha.com/input/?i=48%2F2%289%2B3%29 is the all knowing of math.

edit: BTW handycalc is damn good free calculator that helped me wonders in my math and science classes. I recommend checking it out. Also has built in currency and measurement converter.

I suppose the next question will be...

Does 0.999... = 1 ??

Age old mathematical argument.

/me goes now.

Google says it's 288 and Google is God. Just paste 48/2(9+3) into the search box and let it go forth and multiply...

you're right! I never knew google did that!: http://www.google.co.uk/search?client=firefox-a&rls=org.mozilla%3Aen-GB%3Aofficial&channel=s&hl=en&source=hp&biw=1366&bih=554&q=48%2F2%289%2B3%29&meta=&btnG=Google+Search

and just thought I'd back up that statement too! :p : http://www.thechurchofgoogle.org/Scripture/Proof_Google_Is_God.html

The church of Google, too funny. That is some strong proof, look out now.....

lol wheres itsnoiphone to tell us all whos answer is right

I never said I knew the answer Sora:).
Most people seem to think its 288, but a lot of people say 2.
Apparently Maths teachers at all levels have been asked and many refuse to say one answer is definately right. I think its 288 but stonkr may be nearest to the truth. ( not such an arso after all)
Its actually all over the internet. People are still arguing about it.

i did some research into this, and it turns out, drum roll* in the US we learn PEMDAS, but other countries learn BEDMAS. id like to know what country you are from, and what answer you came up with. i think most of us will agree its either 2 or 288. depending on which order of operations you go by, multiplication and division, hold different precedence. some more research suggests that both of these hold the same precedence, which would explain why two completely different orders of operations can exist, and no one ever raises an eyebrow. so assuming this information is all correct, we can conclude; that depending where you learned math, and who you learned it from, you will have two very different answers. the equation is written very loosely, and normally would have more parenthesis, or brackets, to make it more clear. a problem like this would never come up in real math, and is nothing more than an equation open for interpretation.
have you ever heard of this sentence; "woman without her man is nothing"? without any punctuation its open for two very different interpretations, its a sentence created for nothing but debate, because two very different correct conclusions can come from it. "woman without her man, is nothing" and "woman: without her, man is nothing". the meanings are complete opposites, yet without more punctuation, both could be correct (but i think we all know which one really is, eh? xp)

http://cdn2.knowyourmeme.com/i/000/112/837/original/16h6ja8.jpg?1302454815

source 1 University of North Texas (http://www.math.unt.edu/mathlab/emathlab/order_in_which_mathematical_oper.htm)
source 2 Northern Michigan University (http://ellerbruch.nmu.edu/classes/CS560W96/students/hmack/helen.htm)
source 3 Deb Russell (http://math.about.com/library/weekly/aa040502a.htm)
source 4 University of Minnesota Rochester (http://www.r.umn.edu/academics/advising/just-ask/math/algebra/order-of-operations/index.htm)
source 5 Midland College (http://www.midland.edu/abe/worksheets/math/ORDER%20OF%20OPERATIONS.htm)
source 6 Hofstra University (http://people.hofstra.edu/Stefan_Waner/tut_alg_review/unitA_1.html)

Well I live in Japan and I learned the order of operation I listed earlier. I asked my professors here at the US based college I go to and they told me the same. First complete anything within parentheses then brackets, and then evaluate exponents. Multiplication and Division are equal in precedence as long as they are out of parentheses, and you solve from left to right. Adding and subtracting are equal as well going from left to right after completing multiplication and division.

did you show them it as I wrote it?

I suppose the next question will be...

Does 0.999... = 1 ??
Age old mathematical argument.

/me goes now.

almost but not quite?:D

The church of Google, too funny. That is some strong proof, look out now.....

I didn't actually go on that site straight away :p if you type into google 'is google God?' and click 'I'm feeling lucky' you get to that :p

http://lmgtfy.com/?q=is+google+God%3F&l=1

:)

I suppose the next question will be...

Does 0.999... = 1 ??

Age old mathematical argument.

/me goes now.


almost but not quite?:D

IT IS!!!!!!!!!!

I'll prove it using the same method used to turn recurring number decimals (e.g. 0.27777777.... or 0.3636363636....) into fractions:

say 0.999999..... is equal to x

then multiply 0.9999999 by 10 to get 9.9999999, which is therefore eqaul to 10x

now write the two equations together

9.9999999=10x
0.9999999=x

subtract 0.99999 from 9.99999 to give 9......and since they equal x and 10x respectively, its the same as subtracting x from 10x to give 9x

so 9=9x

simplify 9=9x, and you get x=1

and that is proper mathematic proof, that you can't deny, no matter what... :P

simples *meerkat squeak*

did you show them it as I wrote it?

To my knowledge yes, unless I am missing something O.o

IT IS!!!!!!!!!!

I'll prove it using the same method used to turn recurring number decimals (e.g. 0.27777777.... or 0.3636363636....) into fractions:

say 0.999999..... is equal to x

then multiply 0.9999999 by 10 to get 9.9999999, which is therefore eqaul to 10x

now write the two equations together

9.9999999=10x
0.9999999=x

subtract 0.99999 from 9.99999 to give 9......and since they equal x and 10x respectively, its the same as subtracting x from 10x to give 9x

so 9=9x

simplify 9=9x, and you get x=1

and that is proper mathematic proof, that you can't deny, no matter what... :P

simples *meerkat squeak*

An irrational number can not equal a rational number :D

IT IS!!!!!!!!!!

I'll prove it using the same method used to turn recurring number decimals (e.g. 0.27777777.... or 0.3636363636....) into fractions:

say 0.999999..... is equal to x

then multiply 0.9999999 by 10 to get 9.9999999, which is therefore eqaul to 10x

now write the two equations together

9.9999999=10x
0.9999999=x

subtract 0.99999 from 9.99999 to give 9......and since they equal x and 10x respectively, its the same as subtracting x from 10x to give 9x

so 9=9x

simplify 9=9x, and you get x=1

and that is proper mathematic proof, that you can't deny, no matter what... :P

simples *meerkat squeak*

But... 0.9999999 x 10 = 9.999999 surely? I always knew meerkats couldn't count...

Professor Yaffle

I suppose the next question will be...

Does 0.999... = 1 ??

Age old mathematical argument.

/me goes now.


But... 0.9999999 x 10 = 9.999999 surely? I always knew meerkats couldn't count...

Professor Yaffle

-__-

it's meant to be 0.99999..... and 9.99999.....

-__-

it's meant to be 0.99999..... and 9.99999.....

Still befuddled, as 0.99999 x 10 = 9.9999. Nurse! Where's my pills?

Professor Yaffle

no, 0.99999 RECURRING (i.e. ..........) times 10 is equalt to 9.99999 RECURRING, if they are RECURRING, the number of 9's AFTER the decimal is irrelevant :P

there are a whole lot of other proofs here:

http://en.wikipedia.org/wiki/0.999...

...and mine, and the ones there, are algbraic proofs.....so cannot be faltered...

so let me be clever for once :p ;)

no, 0.99999 RECURRING (i.e. ..........) times 10 is equalt to 9.99999 RECURRING, if they are RECURRING, the number of 9's AFTER the decimal is irrelevant :P

I see now. However, I'd say the recurring numbers are very relevant as they make the number indefinite and you are applying a formula that assumes the value is definite. So, I'm not having any of this numeric black magic, I tells ye!

Professor Yaffle

IT IS!!!!!!!!!!

I'll prove it using the same method used to turn recurring number decimals (e.g. 0.27777777.... or 0.3636363636....) into fractions:

say 0.999999..... is equal to x

then multiply 0.9999999 by 10 to get 9.9999999, which is therefore eqaul to 10x

now write the two equations together

9.9999999=10x
0.9999999=x

subtract 0.99999 from 9.99999 to give 9......and since they equal x and 10x respectively, its the same as subtracting x from 10x to give 9x

so 9=9x

simplify 9=9x, and you get x=1

and that is proper mathematic proof, that you can't deny, no matter what... :P

simples *meerkat squeak*

I took a second look at your statement and here is what is wrong.
You stated x=0.999repeating, therefore you know that value of x so why would you be attempting to resolve for x with an additional equation? You can't subtract to separate equations to create a new one.

Did I just troll this forum with my post. Ooops ;)

Personally I think 0.999... is 0.999... and 1 = 1

they are therefor different things, but I'm no mathematician.

Also, I don't give a toss.

Did I just troll this forum with my post. Ooops ;)

Personally I think 0.999... is 0.999... and 1 = 1

they are therefor different things, but I'm no mathematician.

Also, I don't give a toss.

yep, agreed :p

If a tree falls down in the woods, Goots doesn't give a toss, the tree = .9999999, Google calculates the rate of fall, math is the same as maths, multiplication is hard to say when drunk and nobody hears anything apart from the dinner ladies. What is the point?

Answer. Blue.

Simple.

I'm old now.

If a tree falls down in the woods, Goots doesn't give a toss, the tree = .9999999, Google calculates the rate of fall, math is the same as maths, multiplication is hard to say when drunk and nobody hears anything apart from the dinner ladies. What is the point?

Answer. Blue.

Simple.

I'm old now.

The answer is not blue its Because I said so :)

Does the Pope s**t in the woods? Is a bear catholic?

We need answers...

Professor Yaffle

The bear would be catholic only if it ate little boys :O

If a tree falls down in the woods, Goots doesn't give a toss, the tree = .9999999, Google calculates the rate of fall, math is the same as maths, multiplication is hard to say when drunk and nobody hears anything apart from the dinner ladies. What is the point?

Answer. Blue.

Simple.

I'm old now.

Actulol @ this :D

This has got to be the number .99999 off-topic thread!;)

As we are talking off topic, check out THIS EBAY LISTING. (http://cgi.ebay.co.uk/220768216260#ht_9233wt_1139)

It's a long read but totally worth it, probably one of the best listings I've seen so far, the guy is a comedy genius :)

EDIT: And here's a FOLLOW UP LISTING (http://cgi.ebay.co.uk/Mint-Green-Ford-focus-Inspired-Battle-Cat-Potential-/220770218494#ht_500wt_1156)

I had to type = 48/2*(9+3) into Excel before it would accept it and the answer was 288.

= (48/2)*(9+3) , would be less ambiguous and also calculates to 288.

48/(2*(9+3)) = 2 would have been easier if you wanted it to equal 2.

I hate calculators, like the default one on the phone, that don't give you an instant reciprocal toggle .... Example: you do a calculation and the answer is 2.679 and you want to invert it, so you press the 1/x button and get this:

= 2.679x(1÷ .... on the screen! Where do you go from there??? If there was a memory you could dump it in there then type 1 ÷ Memory recall equalls ..... but you cant! Useless pile of do do.

What you want is RealCalc, which after you've set up the % button to be 1/x allows you to toggle 1/x repeatedly until bliss takes over..... ahhh ... blisss...

EDIT: Just read the car advert - this made me laugh:


On 13-Apr-11 at 08:27:55 BST, seller added the following information:

It is with great sadness that this morning I must inform you that the mint green ford focus has been poo'd on by a bird. I have had a quick look around the neighbourhood and there was 2-3 birds that looked a bit guilty, I have issued them with verbal warnings but on this occasion I am not prepared to perform DNA testing.

I notice nobody has tried to solve Sora's punctuation problem.

I notice nobody has tried to solve Sora's punctuation problem.

man, just tell them the answer already

its 288 if you are young, old or have a computer or are a computer

It's a simple story of interpretation and, therefore, is destined for continued debate (unless it was a vital calculation in the computer program that launches something (a) dangerous or (b) expensive).

Imagine you had a lazy friend and had to write a job reference. You could write:

"You will be very fortunate to get this person to work for
you."

The employer can take that as they like and you won't feel too guilty...

Professor Yaffle

how about 5/x = 5/1x = 5/1*x = 5x

now put x=(9+3)
5/(9+3) = 0.4
5/1*(9+3) = 0.4 ? or 60 ?
but 5 divided by an x is 5 divided by 1x surely ?

how about 5/x = 5/1x = 5/1*x = 5x

That doesn't make any sense...

Neither does this ...

Let a = b.

then, a^2 = ab

and, a^2 + a^2 = a^2 + ab

or, 2a^2 = a^2 + ab

Now take 2ab from both sides ...

2a^2 - 2ab = a^2 + ab - 2ab

Simplify the righ hand side ...

and, 2a^2 - 2ab = a^2 - ab

Then the equation can be written ...

2(a^2 - ab) = 1(a^2 - ab)

Cancelling (a^2 - ab) from both sides gives...

1 = 2

Doh!

That doesn't make any sense...

No it doesnt . but it would if the original equation equalled 2 because it is using the same logic.

L> itsnoiphone to sum up this chaos he created..

No it doesnt . but it would if the original equation equalled 2 because it is using the same logic.

I am not quite following you. Just in your example it makes no sense how removed x from denominator. You would never write the 1 in front of x because it is understood. In your example 5/1x would be the same as 5/(1*x) not 5/1(x), they are two different equations.

Neither does this ...

Let a = b.

then, a^2 = ab

If a=b then a^2 = b^2

ab=c/d=e=15

ab=c/d=e=15

Now it all makes sense :D

If a=b then a^2 = b^2

Yes, but I was just multiplying both sides by a ;)

grats on senior member @v300, side question, is japan really as bad as they say it is on the news? they say tokyo is a ghost town, is that true? sorry random..

Tokyo isn't a ghost town, but people are definitely scared about the radiation from the leaking reactors. It is very bad still and the government has been very shady about the information and handling of the accident. The death count is not even close to accurate because entire towns of people never had a chance to leave and they haven't even recovered a lot of bodies. The death count is probably up around 50,000 people at least. No one even knows about how bad the radiation really is :( I know that area had a lot of manufacturing parts and I am not surprised if many electronic devices haven't had their production slowed down. The silliest thing is bottle water shortage. People are scared to drink tap water and the huge factory that made the majority of caps for bottles got destroyed O.o

Also, thank you Sora :D

dang.. my heart goes out to you.. and besides that im speechless

ab=c/d=e=15

Oooh, he's makin' it up as he goes along..!

Another Monty Python quote right there for you.

L> itsnoiphone to sum up this chaos he created..

I just asked the question and have hardly understood anything since.
This (http://www.youtube.com/watch?v=bwpWw-iVKHc) may help to explain things.

Oooh, he's makin' it up as he goes along..!

Another Monty Python quote right there for you.

Making it up, making it up. How dare you just because I randomly typed something doesn't mean I'm making it up:)

Well at least it was something completely different!

I just asked the question and have hardly understood anything since.
This (http://www.youtube.com/watch?v=bwpWw-iVKHc) may help to explain things.

lol so you started this and have no idea what the answer is yourself?!?!!@

The answer is the mass confusion that followed :D

The answer is relative, as is time and my family.

The answer is relative, as is time and my family.

And every time I look at my bank account it always looks the same:p

48÷2(9+3)= 2

because its NOT

48÷2x12

The parenthesis have higher priority so you work out 2(9+3)

Your right, the parenthesis have priority, what is inside it only though... Therefore it is 48÷2x12 which you would solve from left to right.

I think what this thread has shown is that the one thing you don't want is ambiguity.
So, 48÷2(9+3) = ? should have been written 48÷(2(9+3)) = 2 or (48÷2).(9+3) = 288
depending on what was meant, which was unclear. Brackets provide clear priority.
You can enter the last two examples from left to right using Windows calculator and
get the stated results but if you enter the first example you'll get 288 - but was that
what was meant? Therin lies the debate :)

True, a fun debate :)

the question is what's the missing operator in 48÷2(9+3)=

is it
48÷2x(9+3)=
or
48÷2.(9+3)=

The former gives 288 the latter 2.

I've got it. (and it's not contagious)

This is the formula Samsung used for the GPS, isn't it?

That's why it doesn't always work. Sometimes the answer is 2, sometimes it's 288, sometimes it's a fluffy kitten and just occasionally it's blue.