Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 10 Counting Methods and Probability - Mixed Review of Problem Solving - Page 705: 2a

Answer

See below

Work Step by Step

Let $x$ be your time of arrival and $y$ be your friend's time of arrival. Since you will be arriving between 9:00 AM and 9:30 AM: $$0\leq x\leq30$$ Your friend will be arriving between 9:00 AM and 9:30 AM so: $$0\leq y\leq30$$
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