Answer
550 students
Work Step by Step
Use percent proportion.
$\frac{495}{x}=\frac{90}{100}$ or $\frac{495}{x}=\frac{9}{10}$
Cross products:
$9x=4950$
Divide by 9:
$x=550$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 6 - Percent - 6.4 Using Proportions to Solve Percent Problems - 6.4 Exercises - Page 417: 25
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
