Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-7 The Distributive Property - Practice and Problem-Solving Exercises - Page 51: 68



Work Step by Step

The expression would be 0.8(200-y).Y represents age in years. 20-year-old person: 0.8(200-y) -plug in 20 for y- 0.8(200-20) -simplify- 0.8(180) -multiply- =144 50-year-old person: 0.8(200-y) -plug in 50 for y- 0.8(200-50) -simplify- 0.8(150) -multiply- =120
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