Answer
Ricardo originally weighed 185 pounds.
Work Step by Step
Let $x = $ Ricardo's original weight
$x + 15 - 28 + 5 = 177$
$x + 20 - 28 = 177$
$x - 8 = 177$
$x = 185$ pounds
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - 9.8 Using Equations to Solve Application Problems - 9.8 Exercises - Page 688: 35
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