SOLUTION: the speed of a stream is 6 mph. If a boat travels 94 miles downstream in the same time that it takes to travel 47 miles upstream, what is the speed of the boat in still water?
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Question 849693: the speed of a stream is 6 mph. If a boat travels 94 miles downstream in the same time that it takes to travel 47 miles upstream, what is the speed of the boat in still water?
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
the speed of a stream is 6 mph. If a boat travels 94 miles downstream in the same time that it takes to travel 47 miles upstream, what is the speed of the boat in still water?
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let x=speed of boat in still water.
x+6=speed of boat downstream.
x-6=speed of boat upstream.
travel time=distance/speed
..
94(x-6)=47(x+6)
94x-564=47x+282
47x=846
x=18
speed of boat in still water=18 mph
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