Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 8 - Geometry - Mixed Review Exercises - Page 618: 32

Answer

20 decades

Work Step by Step

The prefix dec means ten and the prefix cent means 100. Therefore a decade has 10 years and a century has 100 years. (2 centuries $\times$ 100 years) $\div$ 10 years = 20 decades
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