Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.1 - Algebraic Expressions, Real Numbers, and Interval Notation - Exercise Set: 91

Answer

$0.4$

Work Step by Step

The average resistance to happiness at age 30 is, $R=4.6-0.02(30)=4$. The average resistance to happiness at age 50 is, $R=4.6-0.02(50)=3.6$ The difference is $4-3.6=0.4$
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