SOLUTION: A motorboat heads upstream on a river that has a current of 3 miles per hour. The trip upstream takes 5 hours, and the return trip takes 2.5 hours. What is th speed of the motorboa
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-> SOLUTION: A motorboat heads upstream on a river that has a current of 3 miles per hour. The trip upstream takes 5 hours, and the return trip takes 2.5 hours. What is th speed of the motorboa
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Question 576068: A motorboat heads upstream on a river that has a current of 3 miles per hour. The trip upstream takes 5 hours, and the return trip takes 2.5 hours. What is th speed of the motorboat? (Assume that the motorboat maintains a constant speed relative to the water.) Answer by chana(69) (Show Source):
You can put this solution on YOUR website! A motorboat heads upstream on a river that has a current of 3 miles per hour. The trip upstream takes 5 hours, and the return trip takes 2.5 hours. What is th speed of the motorboat?
let the speed of the boat = x
speed of boat in upstream = x - 3
speed of boat in downstream = x + 3
distance = speed * time
so (x - 3)* 5 = (x + 3) * 2.5
solve for x to get the speed of the boat .
