Two streams merge to form a river. One stream has a width of 8.1 m, depth of 3.8 m, and current speed of 2.4 m/s. The other stream is 6.9 m wide and 3.3 m deep, and ows at 2.4 m/s. If the river has width 11.1 m and speed 2.7 m/s, what is its depth? Number n Units v