If 9 out of 20 students are girls, what percent are girls?

Master the NLN PAX Mathematics 1 Exam with our comprehensive study guide and quizzes. Test your knowledge with multiple choice questions tailored for the PAX Math exam, featuring detailed explanations and tips to enhance your preparation and increase your chances of success.

Multiple Choice

If 9 out of 20 students are girls, what percent are girls?

Explanation:
Percent is a way to express a part of a whole as a number out of 100. Here, 9 out of 20 students are girls, so we convert the fraction 9/20 to a percent. Compute 9 ÷ 20 = 0.45, and then 0.45 × 100 = 45. So 9 out of 20 corresponds to 45%. A quick check: half of 20 is 10 (which would be 50%). Since there is one fewer girl than half, you’re 5% below 50% (because 1/20 is 5%), giving 45%.

Percent is a way to express a part of a whole as a number out of 100. Here, 9 out of 20 students are girls, so we convert the fraction 9/20 to a percent.

Compute 9 ÷ 20 = 0.45, and then 0.45 × 100 = 45. So 9 out of 20 corresponds to 45%.

A quick check: half of 20 is 10 (which would be 50%). Since there is one fewer girl than half, you’re 5% below 50% (because 1/20 is 5%), giving 45%.

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