SOLUTION: Isabel's boat has a top speed of
20
miles per hour in still water. While traveling on a river at top speed, she went
40
miles upstream in the same amount of time she went
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Question 1030804: Isabel's boat has a top speed of
20
miles per hour in still water. While traveling on a river at top speed, she went
40
miles upstream in the same amount of time she went
60
miles downstream. Find the rate of the river current.
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
Let c= the speed of the current. Then:
40/20-c=60/20+c
40(20+c)=60(20-c)
800+40c=1200-60c
100c=400
c=4 mph as the speed of the current!!!!!!!!!!!!!
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