The cost C of producing x thousand calculators is given by the following equation.

Question

C = -13.6x2 + 13590x + 620000 (x less than or 150)

Write a rational expression that gives the average cost per calculator when x thousand are produced.​ (Hint: The average cost is the total cost C divided by the number of calculators​ produced.)

Answer 1

AC = Average Cost = total cost/quantity = C/x = -13.6x + 13590 + 620000/x

x=1000, C/1000 = -13600 + 13590 + 620 = 610