Mathematics, 18.12.2019 17:31 hannahbaak

John is trying to drain a swimming pool. he has two pumps, but he can only use one at a time. he knows that the time a pump takes to drain the pool varies inversely with the power in watts of the pump. his old pump is a 80 watt pump, and it can drain the pool in 5 hours. how long would the job take if he uses his new 100 watt pump?

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John is trying to drain a swimming pool. he has two pumps, but he can only use one at a time. he kno...

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