Thinking Mathematically (6th Edition)

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: 22

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.
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