Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 3 - Section 3.2 - Problem Solving and Business Applications Using Systems of Equations - Exercise Set - Page 206: 40



Work Step by Step

As per the statement: $x+y=200$ and $100x+80y=17000$ After plugging the value of variable $x$ after simplify from equation first in the second equation, then we get $100(200-y)+80y=17000 \implies -20y=-3000$ or, $y=150$ Now, $x+150=200 \implies x=50$ Thus, $x=50,y=150$
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