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-   -   48÷2(9+3) (https://www.revscene.net/forums/642682-48%F72-9-3-a.html)

murd0c 04-12-2011 10:26 AM

I never passed math in school. Accounting FTW
Posted via RS Mobile

Jgresch 04-12-2011 10:30 AM

Whoever says this is grade 10 math needs to go back to grade 5 or 6 when we actually learned about this lol

baggdis300 04-12-2011 10:34 AM

Quote:

Originally Posted by murd0c (Post 7386988)
I never passed math in school. Accounting FTW
Posted via RS Mobile

lol, so you can't do complex mathmatics so you decided to stick with basic math, and peoples money


i'd totally get you to be my accountant...


:failed:

Oleophobic 04-12-2011 10:35 AM

Quote:

Originally Posted by Presto (Post 7386925)
Fuck... I used up all my fails in this thread. I'm sure others will take the reins and fail all those suckers that got 2. Also, someone please fail the post right above this one, too.

There's a reason why university professors, math teachers, calculators cannot come to an agreement on this.

It's a poorly written equation designed to spark a heated debate (which it has). An equation written in bad form begets ambiguity which begets multiple interpretations. Ask any knowledgeable math professor and he will tell you the equation is ambiguous because of the way it is written.

The only idiots are the ones who got something other than 2 or 288.


Get off your high horse.

FerrariEnzo 04-12-2011 10:35 AM

i think this should be in the FIGHT CLUB section.. haha

dachinesedude 04-12-2011 10:38 AM

calculator: 48 ÷ 2(9+3) = 2

excel: 48 / 2(9+3) = 288

excel: 48 / (2(9+3)) = 2

but seeing how its written like 48 ÷ 2(9+3), i say 2

bloodmack 04-12-2011 10:39 AM

http://mathcentral.uregina.ca/QQ/dat...7/h/brit1.html how to do bedmas lol

t_sack 04-12-2011 10:49 AM

who ever is getting a 2 is a retard.
BEDMAS is not wrong, learn how to apply it.
One more thing, I would trust excel more than the calculator most of the time.

MG1 04-12-2011 10:52 AM

Quote:

Originally Posted by anti_rice (Post 7386902)
BEDMAS works. You just need to know how to use BEDMAS. The answer is 288. 48÷2(9+3) is the same as 48 ÷ 2 x (9 + 3). Whoever thinks 2 is part of the bracket is wrong.

There's the word, "Bed" in it = winning!

remember the old grade four joke?

Add a girl, subtract her clothes, divide her legs, and multiply.

Presto 04-12-2011 10:53 AM

Quote:

Originally Posted by T.T (Post 7386997)
There's a reason why university professors, math teachers, calculators cannot come to an agreement on this.

It's a poorly written equation designed to spark a heated debate (which it has). An equation written in bad form begets ambiguity which begets multiple interpretations. Ask any knowledgeable math professor and he will tell you the equation is ambiguous because of the way it is written.

The only idiots are the ones who got something other than 2 or 288.


Get off your high horse.

Sorry, how is the equation ambiguous? I really don't see how this can be. Is BEDMAS invalidated now that people are plugging numbers into the calculator? What rule are people using to come to the answer 2?

murd0c 04-12-2011 10:54 AM

Quote:

Originally Posted by baggdis300 (Post 7386996)
lol, so you can't do complex mathmatics so you decided to stick with basic math, and peoples money


i'd totally get you to be my accountant...


:failed:

I said I took accounting in school not that I'm a accountant. There is a little difference I think.
Posted via RS Mobile

baggdis300 04-12-2011 10:59 AM

no, you said accounting FTW

so i assumed you mean you are either taking accounting now, or are an accountant.

cause when i said engineering ftw, because im currently in school for mechanical engineering...

TRDood 04-12-2011 11:01 AM

Quote:

Originally Posted by Presto (Post 7387026)
Sorry, how is the equation ambiguous? I really don't see how this can be. Is BEDMAS invalidated now that people are plugging numbers into the calculator? What rule are people using to come to the answer 2?

Bracket matter. Try to take the natural log on both sides. See what you get. It really depends on how you look at the equation.
Posted via RS Mobile

blagh 04-12-2011 11:03 AM

48 ÷ 2(9+3)

48 ÷ 2(12)

48 ÷ 24

2


there's a bracket around the 12, so you would get rid of that first before you divide.

There is only one answer for this the way the OP posted. The only reason people get different answers is because the way their calculators interpret the answer.(Any scientific calculator will get 2)

LOL at how sure presto is about 288 being the answer

InvisibleSoul 04-12-2011 11:17 AM

Quote:

Originally Posted by blagh (Post 7387042)
48 ÷ 2(9+3)

48 ÷ 2(12)

48 ÷ 24

2


there's a bracket around the 12, so you would get rid of that first before you divide.

No, you only have to do stuff INSIDE brackets first. It's not necessarily so that you have to get rid of brackets.

48 ÷ 2(12) is the same as 48 ÷ 2 x 12.

Presto 04-12-2011 11:19 AM

Quote:

Originally Posted by blagh (Post 7387042)
there's a bracket around the 12, so you would get rid of that first before you divide.

Brackets come first in regards to equations within the brackets, which, in this case, was 9+3. There's no longer any equation within the brackets to deal with. The number 2, next to the bracket just means you multiply 2 by whatever is in there. You just have to look at it like this: 48 / 2 * 12, then apply BEDMAS.


Quote:

Originally Posted by Great68 (Post 7386983)
I stand by my calculator. It was programmed by those with much more math skills than either you or I.

I don't doubt the calculator. The problem here is the operator, and how the data was entered. So, tell me, other than BEDMAS, what is the way to solve this. Again, the equation holds no ambiguity. It can and is solvable with BEDMAS.

The only way you can get this equation:
Quote:

48
___
2(9+3)
is if the original equation (48÷2(9+3)) is written as 48÷(2(9+3))

murd0c 04-12-2011 11:22 AM

Quote:

Originally Posted by baggdis300 (Post 7387034)
no, you said accounting FTW

so i assumed you mean you are either taking accounting now, or are an accountant.

cause when i said engineering ftw, because im currently in school for mechanical engineering...

In high school you could take accounting instead of match which I did. Grade 11 one year thats it in order to graduate. I don't deal with math what so ever in my line of work lol

Great68 04-12-2011 11:24 AM

DON'T IGNORE THE BEDMASSSSS ARGHTGHGHGHGHSAGHG!!! :fuuuuu:

blagh 04-12-2011 11:26 AM

Quote:

Originally Posted by InvisibleSoul (Post 7387057)
No, you only have to do stuff INSIDE brackets first. It's not necessarily so that you have to get rid of brackets.

48 ÷ 2(12) is the same as 48 ÷ 2 x 12.

your saying that the brackets around the 12 are insignificant and just changing the "( )" to a "x" thus changing the meaning of the equation


48 ÷ 2(12)= 2

(put those into any scientific calculator and you can confirm)

48 ÷ 2 x 12=288

if you cant see why that is true then good luck to you

Presto 04-12-2011 11:31 AM

Quote:

Originally Posted by blagh (Post 7387081)
your saying that the brackets around the 12 are insignificant and just changing the "( )" to a "x" thus changing the meaning of the equation


48 ÷ 2(12)= 2

48 ÷ 2 x 12=288

if you cant see why that is true then good luck to you

:facepalm:

Back to grade 5 for you:

Order of Operations
Rule 1: First perform any calculations inside parentheses.
Rule 2: Next perform all multiplications and divisions, working from left to right.
Rule 3: Lastly, perform all additions and subtractions, working from left to right.


48 ÷ 2(12) =
24(12) = 288

blagh 04-12-2011 11:37 AM

Quote:

Originally Posted by Presto (Post 7387085)
:facepalm:

Back to grade 5 for you:

Have u finished grade 4 yet?

smaggs 04-12-2011 11:42 AM

Like someone said before, it's a bad layout of the equation and I haven't seen an actual division sign (can't even find one on my keyboard) in years. If the question had any importance and context of the numbers was known, or how the equation was derived, one could easily figure out how to properly lay it out.

As it is...Presto is correct and the answer is 288, however, the logical way of interpreting the badly laid out equation would get 2

Ch28 04-12-2011 11:47 AM

holy fuck there are a lot of dumbasses on RS

this is primary school mathematics!

Oleophobic 04-12-2011 11:52 AM

Quote:

Originally Posted by Presto (Post 7387026)
Sorry, how is the equation ambiguous? I really don't see how this can be. Is BEDMAS invalidated now that people are plugging numbers into the calculator? What rule are people using to come to the answer 2?

it's ambiguous because when someone asks you to interpret 1/2x you don't know whether they mean (1/2)x or 1/(2x). 9 times out of 10 they mean 1/(2x) because the 2 and the x are implied to be together (kinda like the 2(9+3) here) and they are either lazy (bastards!) or don't know how to use brackets to avoid confusion.

I'm not saying interpreting it as 1/(2x) is 'correct'. The first thing I would do is get them to clarify if they mean

(1/2)x or
1/(2x)

that's the proper way to type out the equation to avoid confusion.

xyz123 04-12-2011 11:54 AM

Quote:

Originally Posted by twitchyzero (Post 7386954)
I have to be honest here, I forgot what the E in BEDMAS stood for :devil:

Exponent =)


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