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Biology 15 Online
OpenStudy (anonymous):

In an area in which electricity costs 8 cents/kilowatt-hour, a 5 kW clothes dryer runs for 90 minutes to dry a load of laundry. How much did it cost to dry these clothes?

OpenStudy (anonymous):

cost x kw used = cost for kw cost x time used = cost for time cost for time + cost for kw = answer

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