Answer
1/2
Work Step by Step
$P(A$ and $B) = P(A)*P(B)$
P(B) = 0.9
P(A and B) = 0.45
$.45 = .9*y$ or $1/2$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 10 Counting Methods and Probability - 10.5 Find Probabilities of Independent and Dependent Events - 10.5 Exercises - Skill Practice - Page 721: 8
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