Answers 26-27 Ignite Technical Math-Financial Math - MA2007 Making Connections: Going GreenQuestion 1

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QuizMultiple Choice

Making Connections: Going Green

Question 1 • 26-27 Ignite Technical Math-Financial Math - MA2007

Marco leaves the bathroom faucet running for 22 minutes while he gets ready in the morning. Running the faucet for 5 minutes wastes the same amount of energy as leaving a 60-watt light bulb on for 14 hours. How much energy did Marco waste, in terms of hours which a 60-watt light bulb would remain on?

Answer

A

7.9 hours

B

61.6 hours

C

56.0 hours

D

264.0 hours

Explanation

Five minutes of running water corresponds to 14 hours of light-bulb use. Marco left the faucet running for 22 minutes, which is 22 ÷ 5 = 4.4 times as long. So the equivalent bulb time is 4.4 × 14 = 61.6 hours, matching choice b, 61.6 hours.

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