I'm helping a friend with this question and wanted to make sure I was doing it correctly...(adsbygoogle = window.adsbygoogle || []).push({});

Suppose your local power company charges 6.3 cents per kilowatt hour and your most recent bill came to $27.00. How much energy, on average, did you use (in Joules) per second last month? Assume that the billing period covered 30 days.

$27.00/($0.063/kilowatt hour) = 428.571428... kilowatt hours

428.57... * (3.6 x 10^6) = (1.5428571428571 * 10^9 Joules)/month = M

M / (30 * 24 * 60 * 60) = 595.23809523808 Joules/second

Thanks for the help!

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# Homework Help: Average Energy Use

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