Hughes Corporation is considering replacing a machine used in the manufacturing process with a new, more efficient model. The purchase price of the new machine is $150,000 and the old machine can be sold for $100,000. Output for the two machines is identical; they will both be used to produce the same amount of product for five years. However, the annual operating costs of the old machine are $18,000 compared to $10,000 for the new machine. Also, the new machine...