Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 5 - Ratio and Proportion - 5.3 Proportions - 5.3 Exercises - Page 351: 36



Work Step by Step

To determine whether $\frac{3.75}{1.25} = \frac{7.5}{2.5}$ is true, determine whether the cross products are equal. $3.75\times2.5 = 1.25\times7.5$ 9.375 = 9.375 The cross products are equal so the proportion is true.
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