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: 41

Answer

3 hours

Work Step by Step

Numbers counted per minute = 60 therefore, numbers counted per hour = 60 x 60 =3600 Total numbers to be counted = 10000 Therefore hours required to count total numbers = (10000 / 3600 ) A round off estimate gives (9000/3000 = 3) Therefore, an estimate of 3 hours is required.
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