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27 September, 17:06

You use a 1200-watt hair dryer for 10 minutes each day. a. How many minutes do you use the hair dryer in a month? (Assume there are 30 days in the 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 kilowatt-hours of electricity does the hair dryer use in a month? e. If your town charges $0.15/kWh, what is the cost to use the hair dryer for a month?

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  1. 27 September, 19:29
    0
    300 minuts

    5 hours

    1.2 killowatt

    6 killowatt hour

    6*0.15=0.9

    $0.9
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