Answer
$4\bar{0}0 \ m$
Work Step by Step
Since $1 km =1000 m$ and $1m =100 cm$, we have
$$
16.8\ cm+19.7\ m+0.14 \ km+ 240 \ m\\
=0.168\ m+19.7\ m+140 \ m+ 240 \ m\\
=399.868 \ m \approx 4\bar{0}0 m
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 4 - Review - Page 208: 24
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