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September 18, 2014

September 18, 2014

Posted by **CINDY** on Thursday, December 21, 2006 at 2:16am.

HOW FAR COULD HE HAVE PADDLED IN STILL WATER

12/(v+3) + 12/(v-3) = 5.33 hours

Solve for this speed in still water, v.

12(v-3) + 12(v+3) = 5.33 (v^2 -9)

24 v = 5.33 v^2 - 48

Use the quadratic equation and take the positive root for v.

v = 6.0 km/h

In the same time, the distance he could travel in still water is

D = 5.33 * v = 32 km

- RATE, DISTANCE, TIME -
**Anonymous**, Wednesday, June 19, 2013 at 10:38am6

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