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A TV is rated at 0.1 kW. This TV is used 3 hours per day. What is the cost using this TV each month. Assume cost of electricity is 11.42¢/kWh

A. 103 ¢ ($1.03)

B. 34 ¢ ($0.34)

C. 1030 ¢ ($10.30)

D. 340 ¢ ($3.40)

Respuesta :

ni420

Answer:

A.103 ¢

Explanation:

Tv is rated 0.1 kW

in one day energy used will be 0.1kW ×3hr=0.3kwh

in 30 days energy used will be 0.3kwh×30=9kwh

rate of electriy for one kwh is given 11.42¢

for 9kwh will be 11.42¢×9kwh =102.78¢ ≈103¢

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