Chapter 8.2, Problem 32E

Manufacturing Kitchen Pride manufactures toasters and can openers, which are assembled on two different lines. Line 1 can assemble 15 toasters and 20 can openers per hour, and line 2 can assemble 75 toasters and 20 can openers per hour. The company needs to produce at least 540 toasters and 400 can openers. If it costs $300 per hour to run line 1 and $600 per hour to run line 2, how many hours should each line be run to fill all the orders at the minimum cost? What is the minimum cost?