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)
Responses
58%
58%
1%
1%
52%
52%
2%
To find the percent error in Aatikah's prediction, we need to compare her predicted amount ($30.00) with the actual amount she spent ($19.75). The formula for calculating percent error is:
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.
Applying the formula, the calculation would be:
Percent Error = (|30.00 - 19.75| / 19.75) * 100
Simplifying the calculation within the absolute value:
Percent Error = (10.25 / 19.75) * 100
Dividing:
Percent Error ≈ 0.519108 * 100
Percent Error ≈ 51.91
Rounding to the nearest whole number, the percent error in Aatikah's prediction is 52%.
Huh?!
To find the percent error, we need to calculate the difference between the predicted value and the actual value, and then divide it by the predicted value. The formula for percent error is:
Percent Error = (|Actual Value - Predicted Value| / Predicted Value) x 100
In this case, the predicted value is $30.00 and the actual value is $19.75. Plugging these values into the formula:
Percent Error = (|$19.75 - $30.00| / $30.00) x 100
Percent Error = ($10.25 / $30.00) x 100
Percent Error = 0.34167 x 100
Percent Error ≈ 34.17%
Rounding to the nearest whole number, the percent error is approximately 34%.
To find the percent error, we need to calculate the difference between the predicted amount and the actual amount, and then divide by the predicted amount.
The difference between the predicted amount and the actual amount is $30.00 - $19.75 = $10.25.
Dividing $10.25 by $30.00 gives us 0.3416666666...
To convert this into a percentage, we multiply by 100: 0.3416666666... x 100 = 34.1666666...
Rounding to the nearest whole number gives us 34%.
Therefore, the correct answer is 34%.