Question

Dwayne volunteered to clean the garage. He thought it would only take an hour, but it actually took him two and a half hours. What is the percent error for his estimate?

Answer 1

Dwayne's estimate had a percent error of 60%.

Step-by-step explanation:

To calculate the percent error for Dwayne's estimate, we use the formula:

(|Actual Value - Estimated Value| / Actual Value) x 100%

In this case, the actual time it took Dwayne to clean the garage was 2.5 hours, while his estimated time was 1 hour. Substituting these values into the formula gives us:

(|2.5 - 1| / 2.5) x 100% = (1.5 / 2.5) x 100% = 60%

Therefore, Dwayne's estimate had a percent error of 60%.

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