Answer :
Final answer:
The home, using ten 100-watt lightbulbs for 5 hours per day, will consume approximately 1825 kilowatt-hours of electrical energy in a year.
Explanation:
To determine how many kilowatt-hours of electrical energy are consumed in one year by using these lightbulbs, the following equation should be applicable: Kilowatt-hours (KWh) = Power (KW) x Time (Hours).
The power is 10 bulbs x 100-watt/bulb = 1000 watt = 1KW. The time used is 5 hours per day x 365 days = 1825 hours in one year.
Thus, the total electricity consumption for the year can be calculated by multiplying these two numbers together. Therefore, the electrical energy consumed in one year is 1KW x 1825 hours = 1825 Kilowatt-hours.
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