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Mathematics, 10.09.2021 01:50 wwall7

In his​ motorboat, Bill Ruhberg travels upstream at top speed to his favorite fishing​ spot, a distance of 112 ​mi, in 4 hr.​ Returning, he finds that the trip​ downstream, still at top​ speed, takes only 3.5 hr. Find the rate of​ Bill's boat and the speed of the current. Let x​ = the rate of the boat in still water and y​ = the rate of the current.

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