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.

A. 2%
B. 1%
C. 52%
D. 58%

1 answer

To find the percent error, we first need to find the difference between Aatikah's prediction and the actual amount spent:

$30.00 - $19.75 = $10.25

Next, we calculate the percent error by taking the absolute value of the difference, dividing it by the actual amount spent, and then multiplying by 100 to get a percentage:

($10.25 / $19.75) x 100 ≈ 51.9%

Rounded to the nearest whole number, the percent error in Aatikah's prediction is 52%, which corresponds to option C.