# SOLUTION: Junior's boat will go 15 miles per hour in still water. If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what is the speed of th

Algebra ->  Algebra  -> Expressions-with-variables -> SOLUTION: Junior's boat will go 15 miles per hour in still water. If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what is the speed of th      Log On

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 Question 348643: Junior's boat will go 15 miles per hour in still water. If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what is the speed of the current?Answer by nyc_function(2733)   (Show Source): You can put this solution on YOUR website!Let c = speed of current Downstream: rate = c + 15 time = c distance = 12 Upstream: rate = c - 15 time = c distance = 9 Equation: 12/(c + 15) = 9/(c - 15) Solve the fractional equation for c to find your answer.