Basic College Mathematics (10th Edition)

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

Chapter 4 - Decimals - 4.3 Adding and Subtracting Decimal Numbers - 4.1 Exercises - Page 288: 39

Answer

$$ 16.1\ million$$

Work Step by Step

We subtract the number of internet users in Mexico from the number of internet users in Nigeria. First estimating by rounding to whole numbers: $$ =67 -51 \ million \\ = 16\ million $$ The exact value is: $$ 67-50.9 \ million \\ = 16.1\ million$$
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