Answer
The difference in the weights is 89.5kg.
Work Step by Step
Move the decimal to convert kg to g.
$90kg-500g=90kg-0.5kg=89.5kg$
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 7 - Measurement - 7.4 Problems Solving with Metric Measurement - 7.4 Exercises - Page 509: 5
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