#### Answer

$\frac{1}{10}$

#### Work Step by Step

The ratio of 900 to 9000 is written as $\frac{900}{9000}$
$\frac{900}{9000}=\frac{900\div900}{9000\div900}=\frac{1}{10}$

Published by
Pearson

ISBN 10:
0321955048

ISBN 13:
978-0-32195-504-3

$\frac{1}{10}$

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