Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Appendix A - A.1 - Algebraic Expressions - Exercises - Page 541: 27


$= 10x + 5y$

Work Step by Step

Let $l = $ total length of wood strips $l = 10x + 5y$ (Count the number of $x$'s and $y$'s present) $= 10x + 5y$
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