Answer
$w = 4$
Work Step by Step
$S = 2ℓw + 2wh + 2ℓh$
$148 = 2(5)w + 2(6)w + 2(5)(6)$
$148 = 10w + 12w + 60$
$148 = 22w + 60$
$88 = 22w$
$w = \frac{88}{22}$
$w = 4$
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Appendix A - A.2 - Formulas and Equations - Exercises - Page 546: 33
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