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.
The actual time it took Mark and Matthew to finish the race is 53 minutes, and their predicted time was 60 minutes.
To calculate the percent error, we can use the following formula:
Percent Error = (|Actual Value - Predicted Value| / Actual Value) * 100%
In this case, the actual value is 53 minutes and the predicted value is 60 minutes.
So,
Percent Error = (|53 - 60| / 53) * 100%
Percent Error = (|-7| / 53) * 100%
Percent Error = (7 / 53) * 100%
Percent Error ≈ 13.2%
Therefore, the percent error is approximately 13.2%.