Light emitting diode (LEDs) light bulbs have become required in recent years, but do they make...

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Light emitting diode (LEDs) light bulbs have become required inrecent years, but do they make financial sense? Suppose a typical60-watt incandescent light bulb costs $.54 and lasts for 1,000hours. A 15-watt LED, which provides the same light, costs $3.85and lasts for 12,000 hours. A kilowatt hour of electricity costs$.130. A kilowatt-hour is 1,000 watts for 1 hour. However,electricity costs actually vary quite a bit depending on locationand user type. An industrial user in West Virginia might pay $.04per kilowatt-hour whereas a residential user in Hawaii might pay$.25.
You require a return of 10 percent and use a light fixture 500hours per year. What is the break-even cost per kilowatt-hour?(Do not round intermediate calculations and round youranswer to 6 decimal places, e.g., 32.161616.)

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To solve the EAC algebraically for each bulb we can set up the variables as follows W Light bulb wattage C Cost per kilowatt hour H Hours burned per year P Price of See Answer

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Light emitting diode (LEDs) light bulbs have become required inrecent years, but do they make financial sense? Suppose a typical60-watt incandescent light bulb costs $.54 and lasts for 1,000hours. A 15-watt LED, which provides the same light, costs $3.85and lasts for 12,000 hours. A kilowatt hour of electricity costs$.130. A kilowatt-hour is 1,000 watts for 1 hour. However,electricity costs actually vary quite a bit depending on locationand user type. An industrial user in West Virginia might pay $.04per kilowatt-hour whereas a residential user in Hawaii might pay$.25.You require a return of 10 percent and use a light fixture 500hours per year. What is the break-even cost per kilowatt-hour?(Do not round intermediate calculations and round youranswer to 6 decimal places, e.g., 32.161616.)