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11. A) and B) please answer asap
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11. A) and B) please answer asap

11. A) and B) please answer asap-example-1
User Jpnadas
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a). 1,600 W = 1.6 kW

15 min = 0.25 hour

(1.6 kW) x (0.25 hr) = 0.4 kW·h


b). If each kW·h of energy costs 7¢ , then 0.4 kW·h costs

(0.4 kW·h) x (7¢ /kW·h) = 2.8¢

User Reigel Gallarde
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