Answer
Rounded: 546
Actual: 534.3
Work Step by Step
Estimate of the salary of the worker = 7 x 78 = 546 dollars
Actual salary of the worker = 6.85 x 78 = 534.3 dollars
It is reasonable as the difference between the two is only 11.7.
Thinking Mathematically (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0321867327
ISBN 13:
978-0-32186-732-2
Chapter 1 - Problem Solving and Critical Thinking - Chapter Summary, Review, and Test - Review Exercises - Page 43: 22
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