Question

Numerical Methods

49-50. Energy Savings. For these questions, assume that there are 365 days in a year.

49. Your utility company charges 13 cents per kilowatt-hour of electricity. What is the daily cost of keeping a 100-watt light bulb lit for 12 hours each day? How much will you save in a year if you replace the bulb with an LED bulb that provides the same amount of light using only 25 watts of power?


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