Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 7 - Section 7.2 - Proportion - Exercises - Page 277: 44


5 ft

Work Step by Step

Pitch is defined as $\frac{rise}{run}$. Create a proportion using ratios of rise:run. $\frac{1}{3}=\frac{x}{15}$ Set the product of the means equal to the product of the extremes and solve for the variable. $3\times x=1\times 15$ $3x=15$ $3x\div3=15\div3$ $x=5$
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