SOLUTION: a raft boat travels 9 miles per hour in still water the speed of the river is 4 miles per hour how long will it take to travel 18 miles downstream?

Question 1161921: a raft boat travels 9 miles per hour in still water the speed of the river is 4 miles per hour how long will it take to travel 18 miles downstream?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
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A raft boat travels 9 miles per hour in still water. The speed of the river is 4 miles per hour .
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The DOWNSTREAM speed is .

The question, how long in hours for 18 miles downstream?

.
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