College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 1 - Review Exercises - Page 146: 51

Answer

t=12

Work Step by Step

If it takes them 6 days to complete the house the let that be $\frac{1}{6}$. If it takes Clarissa 5 days less than Shawna to complete the house then Let that be ($\frac{1}{t}$-$\frac{1}{5}$). Then let Shawna be ($\frac{1}{t}$+$\frac{1}{5}$). ($\frac{1}{t}$-$\frac{1}{5}$)+ ($\frac{1}{t}$+$\frac{1}{5}$)=$\frac{1}{6}$ [$\frac{2}{t}$=$\frac{1}{6}$]*[$\frac{6t}{1}$] (2*6)=t 12=t
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