Basic College Mathematics (10th Edition)

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

Chapter 1 - Whole Numbers - Review Exercises - Page 108: 132

Answer

$$ 50,139,000,000$$

Work Step by Step

We are asked to find an estimate and an exact value. To do this, we round each number until the problem is easy to solve in our head for the estimate. We then use the calculator to find the exact number. Doing this, we find: $$ 300\times 200,000,000 = 60,000,000,000$$ The exact number is: $$ 270 \times 185,700,000 \\ 50,139,000,000$$
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