Answer
1:275
Work Step by Step
Always express the numeric ratio in the same order as given in the text version.
primary to secondary = $18\ to\ 4950=\frac{18}{4950}=\frac{18\div18}{4950\div18}=\frac{1}{275}$
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: 37
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