Can someone please help me with this word problem I do not know how to do it.

the speed of the current in a river is 6 mph a ferry operator who works that part of the river is looking to buy a new boat for his business everyday his route takes him 22.5 miles against the current and back to his deck and he needs this trip in a total of 9 hours he has a boat in mind but he can only test it on a lake where there in no current how fast must the boat go on the lake in order for it to serve the ferry operators needs?

Question

Can someone please help me with this word problem I do not know how to do it.

the speed of the current in a river is 6 mph a ferry operator who works that part of the river is looking to buy a new boat for his business everyday his route takes him 22.5 miles against the current and back to his deck and he needs this trip in a total of 9 hours he has a boat in mind but he can only test it on a lake where there in no current how fast must the boat go on the lake in order for it to serve the ferry operators needs?

tkhunny · Answer

Check this out: http://openstudy.com/users/tkhunny#/updates/50fd832ce4b0860af51ed8d3

anonymous · Answer

Didn't understand but thanks anyways

tkhunny · Answer

Did you define the terms you don't know?