Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 4 - Decimals - 4.4 Multiplying Decimal Numbers - 4.4 Exercises - Page 293: 47

Answer

(a) The area of the bill before 1929 was about 23.2 sq in. The area after 1929 was about 16.0 sq in. (b) The difference in the rounded areas is 7.2 sq in.

Work Step by Step

(a) $7.4218 \times 3.125 \approx 23.2$ $6.14 \times 2.61 \approx 16.0$ (b) $23.2 - 16.0 = 7.2$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.