Algebra 1: Common Core (15th Edition)

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

Chapter 6 - Systems of Equations and Inequalities - 6-1 Solving Systems by Graphing - Practice and Problem-Solving Exercises - Page 367: 20

Answer

It takes 2 years for the trees to be the same height

Work Step by Step

Tree 1: 3 + 1x Tree 2: 4 + 1/2x Next, we make the equations equal to each other: $3 + 1x = 4 + 1/2x $ Subtract 1/2x and 3 from both sides; $1/2x = 1$ Divide both sides by 1/2; $x=2$
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