Mathematics, 05.08.2019 17:20, austin856

Acompany has two types of machines, type r and type s. operating at a constant rate, a machine of type r does a certain job in 36 hrs and a machine of type s does the same job in 18 hours. if the company used the same number of each type of machine to do the job in 2 hours, how many machines of type r were used? a. 3b. 4c. 6d. 9e. 12

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Acompany has two types of machines, type r and type s. operating at a constant rate, a machine of ty...