Answer
$78,300 \ m$
Work Step by Step
Since we have the same units, then by addition, we have
$$
19,200\ m+ 8930\ m+ 50,040\ m+ 137\ m=78,307 \ m \approx 78,300~m
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 4 - Section 4.5 - Addition and Subtraction of Measurements - Exercise - Page 185: 28
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