AP Calculus AB
1. The cost per unit for the production of a radio is $60. The manufacturer charges $90 per unit for orders of 100 or less. To encourage large orders, the manufacturer reduces the charge by $0.15 per radio for each unit ordered in excess of 100. How many units must be sold in order for the manufacturer to obtain a maximum profit? Hint: Let x= Number of units above 100. Note: Company has a maximum purchase of 275 units policy.
