Answer
$3270$ jobs have been eliminated.
Work Step by Step
Six years ago there were $6970$ bridge and lock-tender jobs.
Today there are $3700$ that remain.
$6970 - 3700 = 3270$
$3270$ jobs have been eliminated.
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 1 - Whole Numbers - 1.3 Subtracting Whole Numbers - 1.3 Exercises - Page 30: 87
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