A firm is considering replacing a machine that has been used to make a certain kind of packaging material. The new, improved machine will cost $32,000 installed and will have an estimated economic life of 10 years, with a salvage value of $2,500. Operating costs are expected to be $1,000 per year throughout the service life of the machine. The old machine (still in use) had an original cost of $25,000 four years ago, and at the time it was purchased, its service life (physical life) was estimated to be seven years, with a salvage value of $5,000. The old machine has a current market value of $7,900. If the firm retains the old machine, its updated market values and operating costs for the next four years will be as follows:

Year-EndMarket ValueOperating Costs0$790014300$3200233003700311004800405850

The firm's MARR is 12%.

(a) Working with the updated estimates of market values and operating costs over

the next four years, determine the remaining useful life of the old machine.

(b) Determine whether it is economical to make the replacement now.

____ -_u- Operating costs are expected to be $1,000 per year throughout its service life. The machine currently in use had an original cost of $25,000 four years ago, and its service'life (physical life) at the time of purchase was estimated to he seven years with a salvage value of $5,000. This machine has a current market value of $1700. If the firm retains the old machine, its updated market values and operat- ing costs for the next four years will he as follows: - ' Market Value Book Value bperaug Costs : The firm's minimum attractive rate of return is 12%. (a) Working with the updated estimates of market values and operating costs over the next four years, determine the remaining useful life of the old machine. (b)Determine whether it is economical to make the replacement now. (c) If the firm's decision in part (b) is to replace the old machine, when should the replacement occur