Jonathon and samantha row their canoe 33 miles downstream in 3 hours. After a picnic they row back upstream. After 4 hours they only travel 12 miles. Assuming that they canoe at a constant rate and the rivers current is constant , find the speed at which Jonathan and samantha can row in still water.  the speed at which Jonathan and samantha can row in still water is ____ miles per hour

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Jonathon and samantha row their canoe 33 miles downstream in 3 hours. After a picnic they row back upstream. After 4 hours they only travel 12 miles. Assuming that they canoe at a constant rate and the rivers current is constant , find the speed at which Jonathan and samantha can row in still water. 

the speed at which Jonathan and samantha can row in still water is ____ miles per hour

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