Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 4 - Section 4.4 - Systems of Linear Equations and Problem Solving - Exercise Set - Page 318: 4

Answer

c

Work Step by Step

Let's go through the process for each: a. \$12 x 2 + \$4 x 4 = \$24 + \$16 = \$40 \$12 x 3 + \$4 x 5 = \$36 + \$20 = \$56, which does not equal \$50 b. \$15 x 2 + \$2 x 4 = \$30 + \$8 = \$38, which does not equal \$40 c. \$10 x 2 + \$5 x 4 = \$20 + \$20 = \$40 \$10 x 3 + \$5 x 5 = \$30 + \$25 = \$55
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