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Asked by Mary

How much does it cost to operate a 23-W porch light for 24 h if electric energy costs 8¢/kWh?
8 years ago

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Answered by Steve
23 * 24 * 8/1000 = 4.4¢
8 years ago
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How much does it cost to operate a 23-W porch light for 24 h if electric energy costs 8¢/kWh?

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