Intermediate Algebra (6th Edition)

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

Chapter 5 - Section 5.2 - More Work with Exponents and Scientific Notation - Exercise Set - Page 269: 106

Answer

$1.6$

Work Step by Step

Dividing the population of the European Union by the population of the United States, then \begin{array}{l}\require{cancel} \dfrac{4.92\times10^8}{3.10\times10^8} \\= \dfrac{4.92}{3.10}\times\dfrac{10^{8}}{10^8} \\= 1.5870967741935483870967741935484\times10^{8-8} \\= 1.5870967741935483870967741935484\times10^{0} \\= 1.5870967741935483870967741935484\times1 \\= 1.5870967741935483870967741935484 .\end{array} Hence, rounded to the nearest tenth, the population of the European Union is $ 1.6 $ times greater than the population of the United States.
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