To find the percentage error, we first need to calculate the difference between the predicted time and the actual time, and then divide that difference by the predicted time. Finally, we multiply the result by 100 to get the percentage.
The difference between the predicted time and the actual time is:
50 minutes - 46 minutes = 4 minutes
Next, we divide the difference by the predicted time:
4 minutes / 50 minutes = 0.08
Finally, we multiply the result by 100 to get the percentage:
0.08 * 100 = 8%
To the nearest tenth, the percentage error is 8.0%.
The correct answer is not listed among the given options.
Mark and Matthew signed up to walk in a 5K Walk/Run Race.
They predict it will take them 50 minutes to complete the race.
Mark and Matthew finished the race in 46 minutes. What is the percentage error? Round to the nearest tenth. Hint: What is the formula for percentage error?
A. 8.6%
B. 92.0%
C. 8.7%
D. 108.7%
1 answer
1 answer