Basic College Mathematics (10th Edition)

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

Chapter 5 - Ratio and Proportion - 5.5 Solving Application Problems with Proportions - 5.5 Exercises - Page 363: 10


12.5 oz medicine is needed for 20 oz water.

Work Step by Step

$\frac{5\ oz\ medicine}{8\ oz\ water} = \frac{x}{20\ oz\ water}$ $8x = 5 \times20$ $\frac{8x}{8} = \frac{100}{8}$ $x= 12.5$
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