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 - Page R-7: 62



Work Step by Step

In order to find the answer we must find the LCM of in how many days they each get a day in New Orleans. For Elizabeth it is 35, and for Lori it is 20. The LCM of 35 and 20 is found by combining their different prime factors together. Their prime factorizations are 5 * 7 and 2 * 2 * 5 respectively, so the LCM is 2 * 2 * 5 * 7 = 140.
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