Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 1 - Problem Solving and Critical Thinking - 1.2 Estimation, Graphs, and Mathematical Models - Exercise Set 1.2 - Page 26: 33


The estimated life span for a person in Canada is about 704,000 hours.

Work Step by Step

Since the average life expectancy in Canada is 80.1 years, we can estimate this to be 80 years. There are 8760 hours in one year, so we can estimate this to 8800 hours. Then, multiply 80 times 8800 and get 704,000 hours. The actual answer (without accounting for leap years) is 701,676, Therefore, our estimate makes sense.
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