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OpenStudy (anonymous):
Lebron mercruiser travels 15 km/h in still water. He motors 140 km downstream in the same time it takes to travel 35 km up stream what is the speed of the river?
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OpenStudy (anonymous):
If is is the speed of the water the time to go downhill is \[ \frac{140}{s+15}\] What is the time in terms to go uphill 35 KM? equate what you found to\[ \frac{140}{s+15}\] and solve for s. If you do it right, you will find s=25.
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