# need to find values of(x),the boat in still water,and value of (y),current speed

**Question description**

A boat going upstream (against the current) travels 105 miles in 15 hours. It takes the same boat 7.5 hours to make the same trip when it is traveling back downstream (with the current). what is the speed of the boat in still water and what is the speed of the current of the river?

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