Question

I need to solve this problem in my exam:
Suppose that the dollar cost of producing x radios is c(x) = 400 + 20x - 0.2x^2. Find the average cost per radio of producing the first 35 radios.

Answer 1

A) $13.00
B) -$6.00
C) $455.00
D) $855.00

Answer 2

you need to work out the integral of c(x) from x=1 to 35 and then divide that answer by 35.

Answer 3

c(x) = 400 + 20x - 0.2x^2.
the averge cost is C= c(x)/x=400/x +20 -0.2x
the ave cost of producing 35 radios is
C(35)=400/35 +20 -0.2(35)= 24.4 for the first 35 radios ans.......

Answer 4

24.43 (approx)