Ask Question
9 May, 07:44

To save energy and money, Jackie Smith replaced the 150 Watt incandescent light bulb in her house with a 32 Watt CFL bulb. The expected life of incandescent and CFL bulbs is 1000 and 8000 hours respectively. The purchase price of an incandescent bulb is $0.70 and for the CFL it is $5.71. The cost of electricity is 5 cents per kWh. What is her total savings over the life time of the CFL

+5
Answers (1)
  1. 9 May, 10:32
    0
    total savings using CFL light bulbs = $47.09

    Explanation:

    We can compare the costs of 8,000 hours of lighting:

    incandescent light bulbs

    you need 8 incandescent light bulbs to generate 8,000 hours of lighting = 8 x $0.70 = $5.60 they will consume a total of 150 watts x 8,000 hours = 1,200 kWh x $0.05 per kWh = $60 total cost = $5.60 + $60 = $65.60

    CFL light bulbs

    you need one CFL light bulb to generate 8,000 hours of lighting = $5.71 it will consume a total of 32 watts x 8,000 = 256 kWh x $0.05 = $12.80 total cost = $5.71 + $12.80 = $18.51

    total savings = $18.51 - $65.60 = - $47.09
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “To save energy and money, Jackie Smith replaced the 150 Watt incandescent light bulb in her house with a 32 Watt CFL bulb. The expected ...” in 📙 Business if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers