Answer
(a) 100% of a number is equal to the number itself.
(b) 100% of 10 is 10.
Work Step by Step
This shortcut works because when you convert 100% into a decimal it is equal to 1.0 and any number multiplied by 1 is itself.
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 6 - Percent - 6.1 Basics of Percent - 6.1 Exercises - Page 389: 65
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