Calculus Concepts: An Informal Approach to the Mathematics of Change 5th Edition

Published by Brooks Cole
ISBN 10: 1-43904-957-2
ISBN 13: 978-1-43904-957-0

Chapter 2 - Describing Change: Rates - 2.1 Activities - Page 135: 8

Answer

The American Indian, Eskimo, and Aleut population in the United States increased by an average of 55173 every year from 1930 to 2005.

Work Step by Step

The initial population: 362, 000 Final population :4,500,000 The population increase is: final value-initial value =4,500,000-362,000 =$4138000$ The duration of increase is: 2005-1930 =$75 yrs$ Hence, the average increase of population per years is =$\frac{increase in population}{duration of increase}$ =$\frac{4138000}{75}$ =55,173 Thus, population increased by an average of 55173 per year.
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