Question #277163

The PA system at North High School requires 400 watts it is switched on. How much would it cost to run 3 hours, at a cost of $0.10 per kilowatt hour? Round to the nearest cent.


1
Expert's answer
2021-12-08T15:58:53-0500

Convert 400 watts into kilowatts=400/1000=0.4kw=400/1000=0.4kw

Cost=0.4×3×0.10=0.12$Cost=0.4\times 3\times0.10=0.12\$


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