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: 39

Answer

c

Work Step by Step

Average speed of the vehicle = (60 + 70)/2 = 65 miles per hour Average time of travel = (3+4)/2 = 3.5 hours Therefore, distance travelled = Speed x time = 65 x 3.5 = 227.5 The best estimate is c.
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