Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.2 - Operations with Real Numbers and Simplifying Algebraic Expressions - Exercise Set - Page 27: 18



Work Step by Step

The addends have different signs, so to add them, perform the following steps: (1) Subtract the smaller absolute value from the bigger absolute value. $|-7.9|-|2.4| = 7.9-2.4 =5.5$ (2) The sum will have the same sign as the number with the bigger absolute value. $|-7.9|\gt |2.4|$ Thus, $-7.9+2.4=-5.5$
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.