Question

Your utility company charges 12 cents per kilowatt-hour of electricity. Complete parts (a) and (b) below. a. What is the daily cost of keeping lit a 50-watt light bulb for 8 hours each day? b. 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 15 watts of power?

Name: your utility company charges 12 cents per kilowatt hour of electricity complete parts a and b below a what is the daily cost of keeping lit a 50 watt light bulb for 8 hours each day b how much will yo
Uploaded: 2023-07-27T01:40:48-08:00
Duration: 3 min 46 s
Channel: Danielle Fairburn
Description: your utility company charges 12 cents per kilowatt hour of electricity complete parts a and b below a what is the daily cost of keeping lit a 50 watt light bulb for 8 hours each day b how much will yo

          Your utility company charges 12 cents per kilowatt-hour of electricity. Complete parts (a) and (b) below.
a. What is the daily cost of keeping lit a 50-watt light bulb for 8 hours each day?
b. 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  15 watts of power?

Added by C W.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Danielle Fairburn

07/27/2023

Step 1

So, 50 watts is 0.05 kilowatts. If the bulb is on for 8 hours a day, it uses 0.05 kilowatts * 8 hours = 0.4 kilowatt-hours per day. At 12 cents per kilowatt-hour, the daily cost is 0.4 kilowatt-hours * $0.12 = $0.048 or 4.8 cents. Show more…

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Your utility company charges 12 cents per kilowatt-hour of electricity. Complete parts (a) and (b) below. a. What is the daily cost of keeping lit a 50-watt light bulb for 8 hours each day? b. 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 15 watts of power?