Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 6 - Section 6.3 - Proportions and Problem Solving - Exercise Set - Page 435: 10

Answer

35 students

Work Step by Step

$21 \times 15 = 315$ $315/9 = 35$
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