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Light emitting diode ( LED ) light bulbs have become required in recent years, but do they make financial sense? Suppose a typical 6 0
Light emitting diode LED light bulbs have become required in recent years, but do they make financial sense? Suppose a typical watt incandescent light bulb costs $ and lasts for hours. A watt LED, which provides the same light, costs $ and lasts for hours. A kilowatthour is watts for hour. Suppose you have a residence with a lot of incandescent bulbs that are used on average hours a year. The average bulb will be about halfway through its life, so it will have hours remaining and you cant tell which bulbs are older or newer If you require a return of percent, at what cost per kilowatthour does it make sense to replace your incandescent bulbs today? A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to decimal places, eg
Light emitting diode LED light bulbs have become required in recent years, but do they make financial sense? Suppose a typical watt incandescent light bulb costs $ and lasts for hours. A watt LED, which provides the same light, costs $ and lasts for hours. A kilowatthour is watts for hour. Suppose you have a residence with a lot of incandescent bulbs that are used on average hours a year. The average bulb will be about halfway through its life, so it will have hours remaining and you cant tell which bulbs are older or newer If you require a return of percent, at what cost per kilowatthour does it make sense to replace your incandescent bulbs today? A negative answer should be indicated by a minus sign. Do not round intermediate calculations and round your answer to decimal places, eg
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