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A laptop computer consumes about 20 watts of electricity per hour when operating. At 10 cents per kilowatt-hour, how much does a laptop cost to operate for 5 hours?

User Josh M
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Answer:

$0.01

Explanation:

1 kilowatt = 1000 watts

5hrs it uses 100 watts

100 watts = 0.1 kilowatts

0.1 × $0.10 = $0.01

User Michael Reneer
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