## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson

# Chapter 1-4 - Cumulative Review - Page 301: 37

4

#### Work Step by Step

We know that the work on the 5th day cannot make her go over 20 hours. Thus, using x to represent the hours that she can work the 5th day and solving, we find: $$20=3+2+5+6+x \\ 20=16+x \\ x=4$$

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