Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 3 - Introduction to Graphing - 3.5 Slope - 3.5 Exercise Set: 66

Answer

grade= $7\%$

Work Step by Step

The grade can be computed by dividing the rise by run (the horizontal distance) then converting the answer to percent: grade= $\dfrac{315\text{ ft}}{4500\text{ ft}}=\dfrac{7}{100}=7\%$
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