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the cost of running the furnace

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An electric furnace runs nine hours a day to heat a house during January (31 days). The heating element has a resistance of 5.3 ohms and carries a current of 25 A. The cost of electricity is $0.10/kWh. What is the cost of running the furnace for the month of January?

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Solution Summary

It finds the cost of running the furnace given its resistance and the current.

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