Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises: 42

Answer

20 ft

Work Step by Step

Each time the eagle moves up, his elevation increases. When the eagle moves down, his elevation decreases. Create an equation that adds each increase in elevation and subtracts each decrease in elevation. Simplify to find the final elevation. $42+144-126+25-65\longrightarrow$ add and subtract working left to right =$186-126+25-65$ =$60+25-65$ =$85-65$ =$20$
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