Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Section 1.6 - Subtraction of Real Numbers - Exercise Set - Page 71: 95


The elevation difference is $19,757$ feet

Work Step by Step

The peak of Mount Kilimanjaro=$19,321$ feet The Qattara Depression=$-436$ feet (negative because it is below sea level) $ 19,321-(-436)\qquad$...change the subtraction to addition $=19,321+436\qquad$...replace $-436$ with its opposite. $=19,757$ feet
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