Aatikah plans to buv books at a book fair. She thinks she will need $30.00 to burchase the books. She
onlv spends $19.75. Find the percent error in her prediction. Round vour answer to the nearest whole number. (1 point)
2%
52%
58%
1%
To find the percent error, we need to subtract the actual amount spent from the predicted amount, divide it by the predicted amount, and then multiply by 100 to get the percentage.
Percent error = (Actual amount - Predicted amount) / Predicted amount * 100
In this case, the actual amount spent is $19.75 and the predicted amount is $30.00.
Percent error = (19.75 - 30.00) / 30.00 * 100
Percent error = -10.25 / 30.00 * 100
Percent error = -0.3417 * 100
Percent error = -34.17
Rounded to the nearest whole number, the percent error is 34%.
Therefore, the correct answer is 34%.
To find the percent error in Aatikah's prediction, we need to compare her predicted cost ($30.00) with the actual cost ($19.75).
The formula for percent error is given by:
Percent Error = (|Predicted Value - Actual Value| / Actual Value) * 100
Plugging in the values, we get:
Percent Error = (|30.00 - 19.75| / 19.75) * 100
Percent Error = (10.25 / 19.75) * 100
Percent Error ≈ 51.9%
Rounding the answer to the nearest whole number, the percent error in Aatikah's prediction is 52%. Therefore, the correct answer is B) 52%.
To find the percent error in Aatikah's prediction, we need to calculate the difference between her predicted amount and the actual amount she spent, and then express that difference as a percentage of her predicted amount.
The predicted amount was $30.00. The actual amount she spent was $19.75.
The difference between the predicted amount and the actual amount is:
$30.00 - $19.75 = $10.25
To calculate the percent error, we divide the difference by the predicted amount and then multiply by 100:
($10.25 / $30.00) * 100
Using a calculator, the result is approximately 34.17.
Rounding this to the nearest whole number, the percent error is approximately 34%.
Therefore, none of the given answer choices (2%, 52%, 58%, 1%) is correct.