Mathematics, 30.09.2019 10:30 bvolleyball9
You are utility company charges $.13 per kilowatt hour of electricity. what is the daily cost of keeping a 100 w lightbulb for 12 hours each day? how much will you save in a year if you replace the bowl with an led bulb that provides the same amount of light using only 25 w of power?
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You are utility company charges $.13 per kilowatt hour of electricity. what is the daily cost of kee...
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