Question

Your utility company charges 12 cents per kilowatt-hour of electricity. How much does it cost to keep a 150-watt light bulb on for a week?

Answer 1

Answer:

5 x 75 = 375w (5 bulbs added up) 1.5 x 375 = 562.5w (running for an hour and a half) 562.5/1000 x 10 = 5.525 cents. 1 Kwh is 1000w running for 1 hour.

Step-by-step explanation: