Algebra: A Combined Approach (4th Edition)

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

Chapter R - Section R.1 - Factors and the Least Common Multiple - Exercise Set: 61

Answer

Every 35 nights

Work Step by Step

In order to find the answer we must find the LCM of in how many nights they have a night off. For Craig it is 5, and for Edie it is 7. The LCM of 5 and 7 is found by multiplying their prime factors together, which is 5 * 7 = 35.
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