Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 10 - Area - 10-8 Geometric Probability - Practice and Problem-Solving Exercises - Page 673: 38

Answer

$\dfrac{2}{5}$ or, $40 \%$

Work Step by Step

We need to solve the inequality. $-7 \leq 1-2x \leq 1 \implies 4 \geq x \geq 0$ or, $0 \leq x \leq 4$ The probability $P$ is the ratio of the distance between $0$ and $4$ to the total distance: $P=\dfrac{|0-4|}{10}=\dfrac{2}{5}$ or, $40 \%$
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