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 - Mid-Chapter Review - Mixed Review - Page 202: 13


$\approx 29.39\%$

Work Step by Step

Change in elevation: $14255-9600 = 4655$ ft Horizontal Distance: $15,840$ ft The average grade can be found by dividing the change in elevation by the horizontal distance, then converting the answer to percent: Average Grade $= \dfrac{4655\text{ ft}}{15840\text{ ft}}=\dfrac{931}{3168}=0.2938762626 \approx 29.39\%$
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