Question
5. If Darla earned an \( 72 \% \) on her test and there were 100 questions on the test, how many questions did she answer incorrectly?
Ask by Hilton Hobbs. in the United States
Mar 12,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
Darla answered 28 questions incorrectly.
Solution
1. Darla earned \(72\%\) on her test. Since there were \(100\) questions, the number of questions she answered correctly is:
\[
0.72 \times 100 = 72
\]
2. To find the number of questions she answered incorrectly, subtract the number of correct answers from the total number of questions:
\[
100 - 72 = 28
\]
Thus, Darla answered \(28\) questions incorrectly.
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Simplify this solution Beyond the Answer
Darla answered \( 72 \) questions correctly since \( 72\% \) of \( 100 \) is \( 72 \). To find out how many questions she answered incorrectly, you simply subtract the number of correct answers from the total: \( 100 - 72 = 28 \). So, she answered \( 28 \) questions incorrectly. Understanding how percentages work can be super helpful in various real-life situations, like figuring out your savings from a sale or assessing your performance in a class. Don't underestimate the power of percentages—they're everywhere! Plus, mastering this concept can help you tackle similar problems with confidence!
