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. is the answer negative or positive?
To calculate the percent error, we need to find the difference between the predicted time and the actual time, divide it by the predicted time, and then multiply by 100.
The predicted time is 60 minutes, and the actual time is 53 minutes.
So the difference is 60 - 53 = 7 minutes.
To find the percent error, we divide the difference by the predicted time: 7 / 60 = 0.1167.
Finally, we multiply by 100 to get the percent: 0.1167 * 100 = 11.67%.
Since the actual time is less than the predicted time, the percent error will be negative. So the final answer is -11.7%.