Jim paddles from one shore of a lake 3 miles wide at 4mph, and John paddled from the opposite shore at 5mph . How long will t travel before t meet ?

Let X = timeJim paddles 4 mph for x time = 4xJohn paddles 5 mph for x time = 5xwrite an equation: 4x +5x = 3 miles9x = 3 milesDivide both sides by 9:x = 3/9x = 1/3 of an hour = 20 minutes.