SOLUTION: The speed of a boat in still water is 28 miles per hour. The boat traveled 70 miles downstream in the same amount of time that it took to travel 42 miles upstream. What is the rate

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Question 604214: The speed of a boat in still water is 28 miles per hour. The boat traveled 70 miles downstream in the same amount of time that it took to travel 42 miles upstream. What is the rate of the current of the river?
Answer by flame8855(424)   (Show Source): You can put this solution on YOUR website!
let c be the speed of the current
28 +c = 70/t
28-c = 42/t
56= 112/t
t=2
28+c= 70/2 =35
c=7mph

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