Answer
See below.
Work Step by Step
If a job can be done in $19$ hours, the fractional part completed after $x$ hours is $\frac{x}{19}$.
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 6 - Section 6.7 - Formulas and Applications of Rational Equations - Concept and Vocabulary Check - Page 474: 6
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