Answer
12:1
Work Step by Step
540:45
$\frac{540}{45}=\frac{/\!\!\!45\times12}{/\!\!\!45\times1}=\frac{12}{1}$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 7 - Section 7.1 - Ratio - Exercises - Page 270: 39
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