Question

Help need please...quickly

Answer 1

A trader bought some paraffin for $500, he paid $x for each of litre of parrafin

a) Find, in terms of x an expression for the numbers of litres he bought
b) DUe to a leak, he lost 3 litres of paraffin. He sold the remainder of the paraffin for $1 per litre more than he paid for it. Write down an expression, in terms of x, for the sum of money he recieved?

Answer 2

@radar @shadowfiend @shivam_bhalla

Answer 3

@UnkleRhaukus @Ishaan94

Answer 4

I have to run an errand will be back in an hour.

Answer 5

ok

Answer 6

\[P(L)\times x($/L)=$500\]

Answer 7

okay first one i got it, its 500/x what about the next one

Answer 8

\[P(L-3)\times(x+1)($/L)\]

Answer 9

\[x+1(\frac{500}{x}-3)\]-----?

Answer 10

is this right @UnkleRhaukus

Answer 11

**
\[(P-3)L\times(x+1)($/L)\]
\[\left(\frac{500}{x}-3\right)L\times(x+1)($/L)\]

Answer 12

okay thanks, can u tell me how to multiply both (500....) and (x+1) showing steps very clearly...and if possible cn u suggest me a website to learn those.?

Answer 13

that would be a great help?

Answer 14

i think i have this right but im not sure because its a tricky problem\[\left(\frac{500}{x}-3\right)L\times(x+1)($/L)\]\[=\left(\frac{500}{x}-3\right)\times(x+1)$\]\[=500+\frac1x-3x-3\]

Answer 15

do u know any websites to learn this?

Answer 16

i mean expanding in fraction forms?

Answer 17

i dont off hand sorry

Answer 18

@saifoo.khan

Answer 19

my site is lagging. -_-

Answer 20

hmmm?i cn see it

Answer 21

I think "Uncle" pretty well expressed it. Here is my take on it.
Here is what I know from what is given.
1. A trader purchased 500$ worth of paraffin in liter units. He paid x$ per liter.

For part a) express in terms of x the number of liters purchased; No. of liters purchased is $500/$x.
For b) To show the 3 liter loss the trader now has (($500/$x)-3) liters of paraffin. To show the price that he sold this per liter is: $(x+1) This is a $1 more per liter than he paid for it.
To express the amount of money received from this sale we multiply the amoun in liters times the selling price per liter.:
[($500/$x)-3][$(x+1)] Performing the arithmetical operations we get
$500/$x (x$ + $1)-$3x-3 Now to the chalk board;