hahah i know stupid thread but is anyone good at maths lol

[SAV_117]

i need help with a question lol now dont laugh haha

An article bought for $250 is sold for $375 find:
(A) profit in dollars ____________ ok i know this one its $125
(B) the profit as a percentage of the cost price _____________


wat the hell is B its driving me crazy lol

[VNexecutive]

..............50%?

[Calaber]

I'd agree with VN Executive. $125 is half of $250, so the profit is 50%.

[Morton]

It's easily observed that it's 50%, but the mathematical way to find out would be:

(A/B)*100 = % of B that A represents
(125/250)*100 = 50%

[SAV_117]

ohhhhh is that how u work it out haha im an idiot thanks fellas

[STEALTHY™]

..............50%?

sif your smart.


And sif sav didn't know it.

[VNexecutive]

sif your smart.


And sif sav didn't know it.

go play xbox or something.

[SAV_117]

umm i cant do this one either

remove brackets and simplify the following

(A) (2x+y) - (x-4y)
(B) (3a-b) - (2a-3b)

could someone pleaseeeee tell me how to do it as well

[STEALTHY™]

Why do you need the answers?

[CSP]

im not helping someone with their homework on a car forum. certinaly not easy stuff they should know!


mods please close.

[VNexecutive]

umm i cant do this one either

remove brackets and simplify the following

(A) (2x+y) - (x-4y)
(B) (3a-b) - (2a-3b)

could someone pleaseeeee tell me how to do it as well

anything in the second bracket in both of those equations needs to be multiplied by negative 1 (because of the negative symbol before the bracket)
as far as im concerned i dont think there is a need for the brackets in the first lot of the equations.

so,

(A) (2x+y) - (x-4y)
= 2x + y - x + 4y (remembering 2 negatives = a positive)
= 2x - x + y + 4y
= x + 5y

(B) (3a - b) - (2a - 3b)
= 3a - b - 2a + 3b
= 3a - 2a - b + 3b
= a + 2b


atleast i think this is right.

[SAV_117]

Why do you need the answers?

im trying to learn how to do it for an aptitude test i have on thursday and yeah i thought it would be easiest on here

[ImAHoon!]

this looks a lot like grade 7 - 9 maths... the percentage one is grade 8 maths at best.

[CSP]

anything in the second bracket in both of those equations needs to be multiplied by negative 1 (because of the negative symbol before the bracket)
as far as im concerned i dont think there is a need for the brackets in the first lot of the equations.

so,

(A) (2x+y) - (x-4y)
= 2x + y - x + 4y (remembering 2 negatives = a positive)
= 2x - x + y + 4y
= x + 5y

(B) (3a - b) - (2a - 3b)
= 3a - b - 2a + 3b
= 3a - 2a - b + 3b
= a + 2b


atleast i think this is right.

Wrong... For the record. The answers are:

(A) 3x - 5y
(b) 5a + 4b

[SAV_117]

anything in the second bracket in both of those equations needs to be multiplied by negative 1 (because of the negative symbol before the bracket)
as far as im concerned i dont think there is a need for the brackets in the first lot of the equations.

so,

(A) (2x+y) - (x-4y)
= 2x + y - x + 4y (remembering 2 negatives = a positive)
= 2x - x + y + 4y
= x + 5y

(B) (3a - b) - (2a - 3b)
= 3a - b - 2a + 3b
= 3a - 2a - b + 3b
= a + 2b


atleast i think this is right.

thanks man i got the answers here and yeah that is right just need helping working them out which youve helped so thanks

[VNexecutive]

care to explain? dont understand why my answers are so wrong.

[VNexecutive]

oh wow, turns out i was right then.

[CSP]

oh wow, turns out i was right then.

no - you really werent.

[SAV_117]

no - you really werent.

i got the answers right here though umm it says he is right

[Lumps of cheese]

WHAT, csp is wrong???
When did this happen???

[STEALTHY™]

lol juzo

I think the real issue here is why are you cheating for an aptitude test? Your only going to make yourself look like a fool when your hired and can't do these equations by yourself.

[Emackulation]

...LMFAO, CSP FAILZ....hahaha

[SAV_117]

nah man its not cheating im practising before i actually go and do the test i dont hand this in i have to go in and do another one i just wanna learn how to do it all

[Bax]

Wrong... For the record. The answers are:

(A) 3x - 5y
(b) 5a + 4b

Are you sure.

[CSP]

I love it!