Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 1 - Review - Page 45: 130

Answer

1.4

Work Step by Step

We can find the increase in life expectancy between 1980 and 1990 by subtracting the life expectancy in 1980 from the life expectancy in 1990. Life expectancy in 1980: 77.4 Life expectancy in 1990: 78.8 $78.8-77.4=1.4$
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