Prealgebra (7th Edition)

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

Chapter 6 - Section 6.2 - Integrated Review - Ratio, Rate, and Proportion - Page 430: 37


$z = \frac{30}{11}$

Work Step by Step

We use the method of cross multiplying, which states that if $\frac{a}{b} = \frac{c}{d}$, then $ad = bc$. This result can be achieved by multiplying both sides by $cd$. $\frac{6}{11} = \frac{z}{5} \rightarrow 30 = 11z \rightarrow z = \frac{30}{11}$
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