SOLUTION: If a boat goes downstream 78 miles in 3 1/4 hours and upstream 72 miles in 7 1/5 hours. Find the speed of the boat in still water and the speed of the current. Can you help me set
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Question 881775: If a boat goes downstream 78 miles in 3 1/4 hours and upstream 72 miles in 7 1/5 hours. Find the speed of the boat in still water and the speed of the current. Can you help me set up a system of equation please? Thank you Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = the speed of the boat in still water
Let = the speed of the current = the speed of the boat going downstream = the speed of the boat going upstream
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Going downstream:
(1)
Going upstream:
(2)
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This is 2 equations with
2 unknowns, so it's solvable
