Mathematics, 12.05.2021 16:50 camk4420
A 120-watt light bulb uses about 0.1 kilowatt of electricity per hour. If electricity costs $0.20 per kilowatt-hour, how much does it cost to have the bulb on for an hour?
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A 120-watt light bulb uses about 0.1 kilowatt of electricity per hour. If electricity costs $0.20 pe...
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