Mathematics, 09.10.2019 16:30 synite

Two car washers, lydia and jackie, are working on your car. lydia can complete the work in 2 hours, while jackie can complete the work in 1 hour. how many hours do the car washers take if they work together?

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Two car washers, lydia and jackie, are working on your car. lydia can complete the work in 2 hours,...