Suppose that the maximum weight that a certain type of rectangular beam can support varies Inversely as its length and jointly as its width and the square of its height. Suppose also that a beam 3 inches wide, 4 inches high, and 6 feet long can support a maximum of 28 tons. What is the maximum weight that could be supported by a beam that is 5 Inches wide, 4 Inches high, and 20 feet long? Il tons X 5