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Car cleaning. Together, Michelle, Sal, and Kristen can clean and wax a car in 1 hr 20 min. To complete the job alone, Michelle
Car cleaning. Together, Michelle, Sal, and Kristen can clean and wax a car in 1 hr 20 min. To complete the job alone, Michelle needs twice the time that Sal needs and 2 hr more than Kristen. How long would it take each to clean and wax the car working alone?
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Let x the time it takes Sal to clean and wax the car alone Then Michell...
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Quantitative Methods For Business
Authors: David Anderson, Dennis Sweeney, Thomas Williams, Jeffrey Cam
11th Edition
978-0324651812, 324651813, 978-0324651751
