Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 9 - Section 9.7 - Temperature and Conversions Between the U.S. and Metric Systems - Exercise Set: 25

Answer

$16 \text{ billion}\text{ km}\approx 9.942\text{ billion mi}$

Work Step by Step

If want to convert from kilometers to miles, we have to consider the following conversion rate: $1.6093\text{ km}\approx 1 \text{ mi}$ By dividing both sides by $1.6093$, we get: $1\text{ km}\approx \frac{1}{1.6093} \text{ mi}$ We multiply both sides by $16 \text{ billion}$ in order to get the answer to the question: $16 \text{ billion}\text{ km}\approx \frac{16 \text{ billion}}{1.6093} \text{ mi}=\frac{16}{1.6093} \text{ billion mi}\approx 9.942\text{ billion mi}$
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