Answer
$1.2S_1=S_2$
Work Step by Step
$100\%+20\%=120\%=1.2$ times $S_1$ is equal to $S_2$. Thus $1.2S_1=S_2$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.3 - Modeling with Linear Equations - 1.3 Exercises - Page 97: 28
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