Asked by Jake

How much does it cost to operate a 100 W lamp continuously for 1 week if the power utility rate is 8/kWh? answer in $
Answered by Elena
Energy = 100• 7•24 =1.68•10^4 W•h =
= 16.8 kW•h
16.8•0.08 = 1.34$
Answered by Jake
Thank you!!!
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