Aatikah plans to buy books at a book fair. She thinks she will need $30.00 to purchase the books. She only spends $19.75. Find the percent error in her prediction. Round your answer to the nearest whole number.(1 point)

Question

Responses

2%
2%

1%
1%

52%
52%

58%

Answer 1

To find the percent error, we use the formula:

Percent error = (|Actual value - Predicted value| / Predicted value) * 100%

In this case:

Actual value = $19.75
Predicted value = $30.00

Percent error = (|19.75 - 30.00| / 30.00) * 100%
Percent error = (|-10.25| / 30.00) * 100%
Percent error = (10.25 / 30.00) * 100%
Percent error ≈ 0.342 * 100%
Percent error ≈ 34.2%

Rounded to the nearest whole number, the percent error is 34%.