Prealgebra (7th Edition)

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

Chapter 6 - Section 6.2 - Proportions - Exercise Set - Page 427: 50



Work Step by Step

Use cross products to solve for n. $\frac{7.8}{13}=\frac{n}{2.6}$ $\longrightarrow$set cross products as equal $7.8\times2.6=13n$ $\longrightarrow$multiply $20.28=13n$ $\longrightarrow$multiplication property of equality $20.28\div13=13n\div13$ $\longrightarrow$divide $1.56=n$
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