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)
52%
O 2%
196
58%
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To find the percent error, we can use the formula:
Percent error = (|predicted value - actual value| / actual value) * 100
The predicted value is $30.00 and the actual value is $19.75.
Percent error = (|30.00 - 19.75| / 19.75) * 100
Percent error = (10.25 / 19.75) * 100
Percent error ≈ 51.89873418
Rounding to the nearest whole number, the percent error is 52%.
Therefore, the correct answer is 52%.
To find the percent error, you need to calculate the difference between the predicted value and the actual value, and then divide it by the actual value and multiply by 100.
In this case, the predicted value is $30.00 and the actual value is $19.75.
Step 1: Calculate the difference: $30.00 - $19.75 = $10.25.
Step 2: Divide the difference by the actual value: $10.25 / $19.75 ≈ 0.51899.
Step 3: Multiply the result by 100 to get the percentage: 0.51899 * 100 ≈ 51.899.
Rounded to the nearest whole number, the percent error is approximately 52%.
Therefore, the correct answer is:
52%
To find the percent error in Aatikah's prediction, we can use the formula:
Percent Error = (|Observed Value - Expected Value| / Expected Value) * 100
In this case, the observed value is $19.75 and the expected value is $30.00.
So, the percent error is:
Percent Error = (|19.75 - 30.00| / 30.00) * 100
= (|-10.25| / 30.00) * 100
= (10.25 / 30.00) * 100
= 0.3417 * 100
≈ 34.17
Rounding this to the nearest whole number, the percent error in Aatikah's prediction is approximately 34%.
Therefore, the correct answer is 34%.