#### Answer

$\frac{5}{9}$

#### Work Step by Step

Following the example: $0.555...=5(0.1)+5(0.1)^2+...=\frac{a_1}{1-r}=\frac{5(0.1)}{1-0.1}=\frac{0.5}{0.9}=\frac{5}{9}$

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Published by
McDougal Littell

ISBN 10:
0618595414

ISBN 13:
978-0-61859-541-9

$\frac{5}{9}$

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