تم الحل ✓
categoryالإدارة والاقتصاد
schoolبكالوريوس
event_available2026-07-14
السؤال
Transcribed Image Text:
Light emitting diode (LEDs) light bulbs have become required in recent years, but do
they make financial sense? Suppose a typical 60-watt incandescent light bulb costs $.35
and lasts for 1,000 hours. A 15-watt LED, which provides the same light, costs $2.90 and
lasts for 12,000 hours. A kilowatt hour of electricity costs $.111. A kilowatt-hour is 1,000
watts for 1 hour. However, electricity costs actually vary quite a bit depending on location
and user type. An industrial user in West Virginia might pay $.04 per kilowatt-hour
whereas a residential user in Hawaii might pay $.25.
You require a return of 9 percent and use a light fixture 500 hours per year. What is the
break-even cost per kilowatt-hour? (Do not round intermediate calculations and round
your answer to 6 decimal places, e.g., 32.161616.)
Break-even cost
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