boat traveling with the curent went 68 mi in 3hrs 24mins. against the current, it took 4hrs 15mins to travel the same distance. find the rate of thboat in calm water and the rate of the current.

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Distance = rate * timeLet x = the speed of the boatLet y = the rate of the current68 = (x + y)*3.4  (note: 3 hrs and 24 minutes = 3.4 hours)68 = (x - y)*4.25(note: 4 hrs and 15 min = 4.25 hours3.4(x + y) = 684.25((x - y) = 68x + y = 20x - y = 16x = 18 and y = 2The boat travels at 18 mph and the current is at 2 mph.