Answer
$\frac{3}{7}~lb/person$.
Work Step by Step
To get the ratio of $lb/person$ we divide the amount of potatoes by the number of people. That is, $$\frac{18}{42}=\frac{3}{7}~lb/person$$.
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 271: 76
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