Question
Mark and Matthew signed up to walk in a 5K walk/run race. They predict it will take them 60 minutes to complete the race. Mark and Matthew finished the race in 53 minutes. What is the percent error? Round to the nearest tenth.(1 point)
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To find the percent error, we need to find the absolute difference between the predicted time and the actual time, divide it by the predicted time, and then multiply by 100 to get the percentage.
The absolute difference between the predicted time (60 minutes) and the actual time (53 minutes) is:
$$\text{abs\_diff} = |60 - 53| = 7$$
Now, we can calculate the percent error:
$$\text{percent error} = \frac{\text{abs\_diff}}{\text{predicted time}} \times 100 = \frac{7}{60} \times 100 \approx 11.7\%$$
Therefore, the percent error is approximately 11.7%.