Algebra: A Combined Approach (4th Edition)

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

Chapter 2 - Section 2.1 - The Additon Property of Equality - Exercise Set - Page 101: 60


I-90 = 178.5 + m

Work Step by Step

I-80 length is m miles. Also, I-80 length is 178.5 miles shorter than I-90. This means that I-90 length is 178.5 miles longer than I-80. Since I-80 length is m miles, then I-90 is 178.5 miles longer than m. So. I-90 = 178.5 + m
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