SOLUTION: A new LED light bulb uses 10 watts of power. Since energy = power × time energy=power×time , then the energy used for this light bulb can be found my multiplying the pow

Algebra ->  Finance -> SOLUTION: A new LED light bulb uses 10 watts of power. Since energy = power × time energy=power×time , then the energy used for this light bulb can be found my multiplying the pow      Log On


   



Question 1142301: A new LED light bulb uses 10 watts of power. Since
energy
=
power
×
time
energy=power×time
, then the energy used for this light bulb can be found my multiplying the power times the time the bulb is lit. If the bulb is lit for one hour, the energy used will be 10 watt*hours or 10 Wh. If three 10 watt bulbs in one room are kept on for 5 hours, how many watt*hours of energy are used?

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If three 10 watt bulbs in one room are kept on for 5 hours, how many watt*hours of energy are used?
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3*10*5 = 150 watt-hours
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"in one room" is not relevant.