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SSSSS [86.1K]
3 years ago
11

Company charges 10 cent per kilowatt an hour of electricity. How much does it cost to operate a chandelier with five 75 watt lig

ht bulbs for 90 minutes?
Mathematics
1 answer:
UNO [17]3 years ago
5 0

Answer:

  5.625¢

Step-by-step explanation:

The amount of energy used by the chandelier is ...

  5 × 0.075 kW × 1.5 h = 0.5625 kWh

At 10¢ per kWh, the cost will be ...

  0.5625 kWh × 10¢/kWh = 5.625¢ . . . . cost of operation for 90 minutes

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