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Mathematics 12 Online
OpenStudy (anonymous):

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?

OpenStudy (anonymous):

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