Question

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?
a. 7.9 hours
b. 61.6 hours
c. 56.0 hours
d. 264.0 hours
please select the best answer from the choices provided
a
b
c
d

Explanation:

Step1: Set up proportion

Let $x$ be the number of hours a 60 - watt light bulb would be on equivalent to the energy wasted by running the faucet for 22 minutes. We know that running the faucet for 5 minutes is equivalent to a 60 - watt light bulb being on for 14 hours. So the proportion is $\frac{14}{5}=\frac{x}{22}$.

Step2: Cross - multiply

Cross - multiplying gives us $5x = 14\times22$.

Step3: Solve for $x$

First, calculate $14\times22 = 308$. Then $x=\frac{308}{5}=61.6$.

Answer:

B. 61.6 hours