Algebra: A Combined Approach (4th Edition)

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

Chapter 2 - Section 2.4 - An Introduction to Problem Solving - Exercise Set: 58

Answer

Mali Republic : 223 Côte d’Ivoire: 225 Niger: 227

Work Step by Step

Let m = code for Mali Republic Let c = code for Côte d’Ivoire Let n = code for Niger Since the codes are consecutive odd numbers: c = m + 2 n = (m + 2) + 2 = m + 4 Since the sum is 675 m + c + n = 675 m + (m + 2) + (m + 4) = 675 3m + 6 = 675 3m = 669 m = 223 m = 223, c = 225, n = 227
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