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.
o 52%
o 1%
o 58
o 2%
To find the percent error in Aatikah's prediction, we can use the formula:
Percent Error = (|Predicted Value - Actual Value| / Actual Value) * 100
Given that Aatikah predicted she would spend $30.00 and she actually spent $19.75, we can plug these values into the formula:
Percent Error = (|30.00 - 19.75|/19.75) * 100
Simplifying:
Percent Error = (10.25/19.75) * 100
Percent Error ≈ 0.518987 * 100 ≈ 51.9
Rounding to the nearest whole number, the percent error in her prediction is 52%.
Therefore, the correct answer is option o 52%.
To find the percent error in Aatikah's prediction, we need to compare her predicted value ($30.00) with the actual value she spent ($19.75).
The formula for percent error is: (|actual value - predicted value| / actual value) * 100
Substituting the values:
(|19.75 - 30.00| / 19.75) * 100
Calculating:
(10.25 / 19.75) * 100 ≈ 52%
Therefore, the percent error in Aatikah's prediction is approximately 52%.
The correct option is: o 52%
To find the percent error in Aatikah's prediction, we need to calculate the difference between her prediction ($30.00) and the actual amount she spent ($19.75).
The difference is $30.00 - $19.75 = $10.25.
Then, we divide the difference by her prediction and multiply by 100 to find the percent error:
($10.25 / $30.00) * 100 = 34.17%.
Rounded to the nearest whole number, the percent error is 34%.
Therefore, none of the given options are correct.