Percent error is calculated by taking the absolute value of the difference between the actual value and the predicted value, dividing it by the actual value, and then multiplying by 100.
In this case, the actual value is $19.75 and the predicted value is $30.00.
The absolute value of the difference between the actual value and the predicted value is $30.00 - $19.75 = $10.25.
Dividing this by the actual value, $10.25/$19.75 = 0.519.
Multiplying by 100, 0.519 * 100 = 51.9
Rounding to the nearest whole number, the percent error is approximately 52%. Answer: \boxed{52}.
Aatikah plans to buy books at a 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 answer