SOLUTION: A boat travles upstream in 5 hours and same distance downstream in 3 hours if the speed of boat is 18mph what is speed of current?? 2. A plane x to y afsinst the wind in 8 hour

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Question 1038784: A boat travles upstream in 5 hours and same distance downstream in 3 hours if the speed of boat is 18mph what is speed of current??
2. A plane x to y afsinst the wind in 8 hour and flies back from y to x with the wind in 5hrs if the speed of plane is 650mph find the speed of wind?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39627) About Me  (Show Source):
You can put this solution on YOUR website!
A boat travles upstream in 5 hours and same distance downstream in 3 hours if the speed of boat is 18mph what is speed of current??

A boat travels upstream in 5 hours and same distance downstream in 3 hours.
If the speed of boat is 18mph what is speed of current?

RT=D relates speed, time, distance. 
               SPEED          TIME        DISTANCE
UP              18-c           5            d
DOWN            18+c           3            d

system%28%2818-c%295=d%2C%2818%2Bc%29%2A3=d%29

5%2818-c%29=3%2818%2Bc%29
Continue to solve for c.


The question #2 is in general the same type or form of example ---- just a different example. The solution process is the same.

Answer by ikleyn(52864) About Me  (Show Source):