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 - Practice: 7

Answer

First integer is 46, the second is 48, and the third is 50.

Work Step by Step

If we call the first of three consecutive even integers x, the second is x + 2, and the third is x + 4. Since the sum is 144, the expression is: x + (x + 2) + (x + 4) = 144 Solve for x: 3x + 6 = 144 3x = 138 x = 46 The first integer is x = 46, the second is x + 2 = 46 + 2 = 48, and the third integer is x + 4 = 46 + 4 = 50.
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