SOLUTION: Mark swims at a speed of 5.8 mph in still water. The river he's in flows at a speed of 3.7 mph. How long will it take Mark to swim 2.2 mi downstream? Round our answer to the nea

Question 266778: Mark swims at a speed of 5.8 mph in still water. The river he's in flows at a speed of 3.7 mph. How long will it take Mark to swim 2.2 mi downstream? Round our answer to the nearest tenth of an hour, if necessary.
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
This is an RTD problem. Here is a table based on the given information
swimmer . . . . . . rate . . . . . . time . . . . . . .distance
mark . . . . . . . . . .5.8+3.7 . . . .t . . . . . . . . (2.2)
since he is going down stream or with the current, we add to get

combine like terms to get

divide to get
hours
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