If 9/15 equals x/25, what is x?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the GMAS 6th Grade Mathematics Test with guided quizzes. Study using flashcards and multiple-choice questions with detailed hints. Succeed in your math exam!

Multiple Choice

If 9/15 equals x/25, what is x?

Explanation:
You're working with a proportion: two ratios are equal. Since 9/15 = x/25, you can simplify 9/15 to 3/5. So 3/5 = x/25, and cross-multiplying gives 3·25 = 5x, which is 75 = 5x, so x = 15. You could also cross-multiply directly from the original form: 9·25 = 15·x, leading to x = 225/15 = 15. In either path, the value that preserves the equal ratios is 15.

You're working with a proportion: two ratios are equal. Since 9/15 = x/25, you can simplify 9/15 to 3/5. So 3/5 = x/25, and cross-multiplying gives 3·25 = 5x, which is 75 = 5x, so x = 15. You could also cross-multiply directly from the original form: 9·25 = 15·x, leading to x = 225/15 = 15. In either path, the value that preserves the equal ratios is 15.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy