By using decimals you've rather confused yourself. Do it as fractions:Breadzombie said:Thomas Rembrandt said:the answer is 4/5 or 0.8. Parsing from left to right. I have no idea how you end up with 0.79 but if you meant 0.8 then you were parsing correctly and you would end up with 288 at the OP's formulaBreadzombie said:4/3*(2+1)/5 isn't hard at all.It's 0,79(or 0,78 depending on how many numbers you take from the repeating decimal)Thomas Rembrandt said:Yes indeed, it's amazing how wrong (and proud of it) you are.Breadzombie said:Seriously? That's like third grade stuff right there!Second grade even!
It's 2. No other answer is true or acceptable in any form or way.
How you people even pass math if you can't solve this.And I'm not trying to be a douche or anything , but this simply amazes me !
Multiplications and Diversions have to be interpreted from left to right, otherwise any computer would get confused with longer equations. Try something like 4/3*(2+1)/5 and then what?
so 288 is the correct answer. Any math software including google and wolfram alpha tell the same.
4/3 = 1,3333333inf
3/5 = 0,6
1,333333infx0,6 = 0,79 or 1,3 x 0,6 = 0,78
I have no idea how you end up with 0,8 and as i said it's second grade math , so no i'm not proud of it at all.
Ye , actually it's exactly as you say.I couldn't find the words to phrase it since I'm really sleepy.Broady Brio said:Married? Can't say I've heard that term in Mathematical situation before.Thomas Rembrandt said:At 48÷2x12 <- why do you assume "2x12" belong together? There is your mistake, they are not marriedBroady Brio said:48÷2(9+3)=?
48÷2x12=?
48÷24=?
=2
so ... 288
I only assumed because when for example 2 is next to a bracket like so, I've been taught it's 2 times whatever's in the brackets.
For example;
2(8)
I've been taught that is equal to 2 x 8, which is 16. Unless both me AND my scientific calculator is wrong...
No the problem is when it is written as shown here there is no ambiguity like with the other equation. What you really have after brackets have done which you have stated is 48÷2*12=288. In this case you solve the equation from left to right as division comes before multiplication so 48/2 = 24. Then 24*12= 288.Broady Brio said:Married? Can't say I've heard that term in Mathematical situation before.Thomas Rembrandt said:At 48÷2x12 <- why do you assume "2x12" belong together? There is your mistake, they are not marriedBroady Brio said:48÷2(9+3)=?
48÷2x12=?
48÷24=?
=2
so ... 288
I only assumed because when for example 2 is next to a bracket like so, I've been taught it's 2 times whatever's in the brackets.
For example;
2(8)
I've been taught that is equal to 2 x 8, which is 16. Unless both me AND my scientific calculator is wrong...
I was taught "BODMAS". (O for "Operative"). Teacher must have been insane.JWRosser said:BIDMAS!!!
(Or BEDMAS).
It's 2.
i can't wrap my head around how so many people seem proud to get things wrong cause they use "BEDMAS" or whatever (we were never taught this in school as an aid, we understood how * and / were before + and - but were equal since division by a number is infact a multiplication)Lizardon said:Why does this thread keep coming up?
I find it hilarious that everyone is using the Order of Operations, but arriving at different answers.
To add my two cents, 288. Brackets first, then multiplication and division going left to right.
No you're right.(The order is technically wrong but you have correct answer.)Cogwheel said:Well, you'd handle the division first.
Which would mean it's 24x12, so yes, 288.
Edit: Apparently I'm a complete idiot.
In what way do you imagine fractions and division to be different?Glademaster said:So since there is no ambiguity here as he has not used the / which can be used for either a fraction line or division
Doesn't multiplying out brackets count as multiplication and therefore come after Division in BIDMAS?Iznat said:BEMDAS
2(9+3)
= 2(12)
= 24
therefore 48/24
= 2
There is no argument to this >_<
Titan Buttons said:must not be a scientific Calculator, normal ones are not programed to prioritise brackets
My calculator is a Casio fx-82AU and it clearly says "Scientific Calculator" on the front. They're given out by our school for use from years 8-12 and are approved by the Board of Studies to use in all exams. Trust me when I say that this calculator is the correct one to work an equation out with.cookyy2k said:Most calculators also say sqrt(-1) is syntax error and that ain't right. those things need to be used as a tool not trusted completly. Also different calculators say different results for this since it's ambiquous.
He doesn't what he meant is that a fraction symbol can be seen as including everything after it below the fraction if you use it in a straight line of text instead of the classical way of stuff being clearly under and above.Sikachu said:In what way do you imagine fractions and division to be different?Glademaster said:So since there is no ambiguity here as he has not used the / which can be used for either a fraction line or division
Yes, your calculator assumes this too. But that interpretation is just because because the formula is written 2(x)not 2*x (or so i assume, because otherwise your calc is simply wrong). In my school scientific calculators were forbidden because of stuff like this.Broady Brio said:Married? Can't say I've heard that term in Mathematical situation before.Thomas Rembrandt said:At 48÷2x12 <- why do you assume "2x12" belong together? There is your mistake, they are not marriedBroady Brio said:48÷2(9+3)=?
48÷2x12=?
48÷24=?
=2
so ... 288
I only assumed because when for example 2 is next to a bracket like so, I've been taught it's 2 times whatever's in the brackets.
For example;
2(8)
I've been taught that is equal to 2 x 8, which is 16. Unless both me AND my scientific calculator is wrong...
So what one would write as (a+b)/(c+d) if they wanted to be understood. Yeah ok, I get it now.4li3n said:He doesn't what he meant is that a fraction symbol can be seen as including everything after it below the fraction if you use it in a straight line of text instead of the classical way of stuff being clearly under and above.Sikachu said:In what way do you imagine fractions and division to be different?Glademaster said:So since there is no ambiguity here as he has not used the / which can be used for either a fraction line or division
They do complex numbers at school now? Sorry to burst your bubble but I think your calculator was chosen not for its superior functionality but for its modest retail price.MercurySteam said:Titan Buttons said:must not be a scientific Calculator, normal ones are not programed to prioritise bracketsMy calculator is a Casio fx-82AU and it clearly says "Scientific Calculator" on the front. They're given out by our school for use from years 8-12 and are approved by the Board of Studies to use in all exams. Trust me when I say that this calculator is the correct one to work an equation out with.cookyy2k said:Most calculators also say sqrt(-1) is syntax error and that ain't right. those things need to be used as a tool not trusted completly. Also different calculators say different results for this since it's ambiquous.
Besides, I showed you how I did it on paper with the working so the calculator is irrelevant.