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.

Question

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)

Answer 1

First, find the difference between Aatikah's predicted amount and the actual amount she spent: $30.00 - $19.75 = $<<30.00-19.75=10.25>>10.25

Then divide that difference by the predicted amount and multiply by 100% to find the percent error: $10.25 / $30.00 * 100% = 0.342 * 100% = 34.2%
Round 34.2% to the nearest whole number to find the percent error: 34%