A swimming pool is being drained with a pump. The pump drains the pool at a constant rate, The pool's water level drops 3 inches in 6 hours was the rate per hour of the water level change?
3 inches in 6 hours = ___ inches in 1 hour Set up a proportion then cross multiply to solve. (3/6) = (x/1) 6x=3 Divide both sides by 6 x = 3/6 = 1/2 1/2 inch per hour
