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.
Responses
58%
58%
2%
2%
52%
52%
1%
To find the percent error, you need to calculate the difference between the actual and predicted values, divide that by the predicted value, and then multiply by 100.
The difference between the predicted value and the actual value is: $30.00 - $19.75 = $10.25
To calculate the percent error: (10.25/30.00) * 100 = 34.17
Rounded to the nearest whole number, the percent error is 34%.
To find the percent error in Aatikah's prediction, we can use the formula:
Percent Error = ((Predicted Value - Actual Value) / Actual Value) * 100
In this case, the predicted value is $30.00 and the actual value is $19.75.
Percent Error = (($30.00 - $19.75) / $19.75) * 100 = ($10.25 / $19.75) * 100
Calculating this, we get:
Percent Error = 0.518987 * 100 = 51.8987
Rounding this to the nearest whole number, the percent error is 52%. Therefore, the correct answer is:
52%
To find the percent error, we need to compare the difference between Aatikah's predicted cost and the actual cost to purchase the books.
The predicted cost is $30.00, and the actual cost is $19.75.
The difference is $30.00 - $19.75 = $10.25.
To calculate the percent error, we divide the difference by the predicted cost, and then multiply by 100:
Percent Error = (Difference / Predicted Cost) * 100
Percent Error = ($10.25 / $30.00) * 100
Percent Error ≈ 34.17%
Rounding the percent error to the nearest whole number, we get 34%.