Kellen paddled for 4 hours with a 3-km/h current to reach a campsite.  The return trip against the same current took 7 hours.  What is the speed of the boat in still water?

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter7: Rational Expressions And Functions
Section7.5: Solve Applications With Rational Equations
Problem 308E: Brian can lay a slab of concrete in 6 hours, while Greg can do it in 4 hours. If Brian and Greg work...
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Kellen paddled for 4 hours with a 3-km/h current to reach a campsite.  The return trip against the same current took 7 hours.  What is the speed of the boat in still water?

 

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