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You are looking at your power bill for the month, you pay 12 cents per kilowatt-hour. Running a 60 watt light bulb for 1 hour is .06 KWH, if you leave a light on all the time that has 5 light bulbs in it how much would that cost in a 30 day month? Answer in the form of $2.54 without the dollar sign.

2 Answers

3 votes

Total electricity consumed per day

  • 24(0.06)
  • 1.44Kwh

Consumed in 30days

  • 30(1.44)
  • 43.2Kwh

For 5bulbs

  • 5(43.2)
  • 216kwH

Cost

  • 216(0.12)
  • $25.92
User Ferdyh
by
7.9k points
4 votes

Answer:

  • $25.92

Explanation:

  • 1 bulb in 1 hour = 0.06 kWh
  • Unit of cost = 12 cents per kWh = $0.12 per kWh

5 bulbs in 30-day month will consume electricity:

  • 5*0.06*30*24 = 216 kWh

The total cost is:

  • 216 * 0.12 = $25.92
User Cosyn
by
8.0k points
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