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Mathematics, 07.10.2019 07:30 elrodkaitlynn2965

Awaterbed heater uses 450 w of power. it is on 25 percent of the time, off 75 percent. what is the annual cost of electricity at a billing rate of 0.12 kwh

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Awaterbed heater uses 450 w of power. it is on 25 percent of the time, off 75 percent. what is the a...

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