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 - 6-2 Solving Systems Using Substitution - Practice and Problem-Solving Exercises - Page 376: 36


$12$ small prints $6$ large prints

Work Step by Step

$x$ represents large prints, and $y$ represents small prints. The two equations are: $y=2x$ $20y+45x=510$ Plug in $y=2x$ to find the X-value: $20(2x)+45x=510$ $40x+45x=510$ $85x=510$ $x=6$ Plug in $x=6$ to find Y: $y=2(6)$ $y=12$
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