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Mathematics, 12.05.2021 16:20 getyoursmarts
A 120-watt light bulb uses about 0.1 kilowatts 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 kilowatts of electricity per hour. If electricity costs $0.20 p...
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