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Ahat [919]
3 years ago
6

What is the cost of lighting a 500-watt outdoor light for 8 hours, if electricity costs 7.5 cents per kilowatt-hour?

Mathematics
1 answer:
Airida [17]3 years ago
5 0
 <span>500 = 0.5 kw 
0.5 * 8 * 7.5 = 30c</span>
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