A boat moves at a rate of 13 mph in still water If the river

A boat moves at a rate of 13 mph in still water. If the river\'s current flows at a rate of 2 mph, how long does it take the boat to travel 35 miles upstream?

How many hours does it take? Please round answer to the nearest tenth.

Solution

speed of boat upstream S = 13-2=11mph,

given distance D=35 miles

time T = D/S = 35/11 = 3.1818 = 3.18 hours

A boat moves at a rate of 13 mph in still water. If the river\'s current flows at a rate of 2 mph, how long does it take the boat to travel 35 miles upstream? H

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