Thinking Mathematically (6th Edition)

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

Chapter 1 - Problem Solving and Critical Thinking - 1.3 Problem Solving - Exercise Set 1.3 - Page 39: 39


From first to last the order of finish is: Andy, Darnell, Caleb, Beth, Ella

Work Step by Step

We are told that Andy finished 7 seconds ahead of Caleb and Caleb is 2 seconds ahead of Beth. This makes Andy 9 seconds ahead of Beth. Then, we learn that Darnell finishes 6 seconds ahead of Beth (which makes Darnell also finish 4 seconds ahead of Caleb. Last, Ella finishes last at 2 seconds behind Beth.
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