Basic College Mathematics (10th Edition)

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

Chapter 9 - Basic Algebra - 9.5 Evaluating Expressions and Formulas - 9.5 Exercises - Page 660: 5

Answer

-10

Work Step by Step

2r + 4s Replace r with 1. Replace s with -3. 2(1) + 4(-3) Using the order of operations, do all multiplications first. Then addition. = 2 + (-12) Now, change addition to subtraction. =2-12 = -10
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.