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You use a 1200 watt hair dryer for 10 mintues a day.

a. how many mintues do you use the hair dryer in a month? (30 days in a month)

b. how many hours do you use the hair dryer in a month?

c. what is the power of the hair dryer in kilowatts?

d. how many kilowatts hours of electricity does the hair dryer use in a month?

e. if your town charges $0.15wh, what is the cost to use the hair dyer for a month?

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  1. 8 November, 09:03
    0
    A. 10minutes x 30 = 300 minutes

    B. 300minutes/60 (mins in an hour) = 5 hours

    C. 1200 watts/1000 (watts in a kilowatt) = 1.2 kW

    D. 1.2kW x 5hr = 6kWh

    E. 0.15 x 1200w x 6hr = 1080
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