Algebra 1: Common Core (15th Edition)

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

Chapter 2 - Solving Equations - 2-4 Solving Equations With Variables on Both Sides - Got It? - Page 103: 2


28 months

Work Step by Step

The monthly saving: $112 - 88 = 24$ Define: Let m = the number of months Relate: Savings = $24m$ Write: $24m = 650$ $m \approx27.083$ Then $24(27.083)=649.992$ In 27 months, the manager will have saved just under $650, so in 28 months, the copier will have paid for itself.
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