SOLUTION: Suppose that the number of cars manufactured at an automobile plant varies jointly as the number of workers and the time they work. If 160 workers can produce 32 cars in 2 hours, f

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Question 850838: Suppose that the number of cars manufactured at an automobile plant varies jointly as the number of workers and the time they work. If 160 workers can produce 32 cars in 2 hours, find the number of cars that 220 workers can produce in 3 hours.
Answer by JulietG(1812)   (Show Source): You can put this solution on YOUR website!
160 workers * 2 hours = 320 man-hours
320 man-hours produces 32 cars
Therefore, it takes 10 man-hours to produce one car.
.
220 workers * 3 hours = 660 man-hours
660 man-hours / 10 hours per car = 66 cars

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