Basic linear, advice needed
Hi guys, I'm think im missing a step here:
cost in pounds = C=500+10X *(x=no. units produced)
revenue in pounds = R=150X - 3X^2
I work out the weekly profit by subtracting C from R, which = P.
I need to show that, in terms of the number of units produced (X), the weekly profit is given by, P =140X - 500 - 3X^2.
So far I havedone P = R - C
p = (150X - 3x^2) -(500 + 10X)
= 140X - 3X^2 - 500
Have i shoen that in terms of X as I needed to, as my 500 and 3X^2 are the other way round....This is what confuses me.
Any light you could shed on this would be great,