Goodyear Commercial Retread facility recycles worn or damagedtires to retread two sizes of tires, medium and large, for tractortrailers. To fill one client’s order, they will use a combinationof three machines to manufacture the retreads and will need toproduce at least 54 medium tires and 59 large tires. In one hour,Machine I can produce 2.5 medium tires and 5 large tires, MachineII can produce 4.5 medium tires and 3 large tires, and Machine IIIcan produce 5 medium tires and 10 large tires. The cost per hour tooperate Machine I, II, and III are $8, $9, and $10, respectively.There are two combinations of using the three machines that producethe same minimum cost. What are those two combinations and what isthe minimum cost?
