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A piece of equipment has a first end of $150,000, a macsumana usefid life of 7 years, and a market (sal- vage) value described by the relation S = 120,000 - 2010004, where & is the number of years since it was purchased. The salvage value cannot go below zero. The AOC series is estimated using AOC = 601000 + 10,000k The interest rate is 15% per year. Deter- mine the economic service life (a) by hand solution, using regular AW computations, and (b) by spread- sheet, using annual marginal cost estimates. Determine the economic service life and come- sponding AW value for a machine that has the fol- lowing cash flow estimates. Use an interest rate of 14%% per year and hand solution. Salvage Operating Value, $ Cost, $ per Year 75 000 -31,030 -34,030 40 000 -34,030 25 000 -34,030 15 000 -45,030 -49 030A crashing machine that is a basic component of a metal recycling operation is wearing out faster than expected. The machine was purchased 2 years ago for $400,000. At that time, the buyer thought the machine would serve its needs for at least 5 years, at which time the machine would be sold to a smaller independent recycler for $30,000. Now, however, the company thinks the market value of the diminished machine is only $50,000. If it is kept, the machine's operating cost will be $37,000 per year for the next 2 years, after which it will be scrapped for $1000. If it is kept for only 1 year, the market value is estimated to be $10,000. Altema- tively, the company can of nice the process now for a fixed cost of $56,000 per year. At an interest rate of 10%% per year, should the company continue with the current machine or o arce the process? The data associated with operating and maintain- ing an asset are shown below. The company man- ager has already decided to keep the machine for I more year (ie., until the end of year 1), but you have been asked to determine the cost of keeping it more year after that. At an interest rate of 10% ber year, estimate the AW of keeping the machine from year I to year 2. Operating Cost. Year Market Value, $ $ per Year 30,000 -15,000 25,000 -15,000 14,000 -15,000 10,000 -15,000Keep or Replace the Kiln Case PE In Example 1 1.8, the in-place kiln and replacement killm (GH) were evaluated using a fixed study pe- riod of & years. This is a significantly shortened period compared to the expected 12-year life of the challenger. Use the best estimates available throughout this case to determine the impact on the capital recovery amount for the GH kiln of short- ening the evaluation time from 12 to 6 years. Nabisco Bakers currently employs staff to operate the equipment used to sterilize much of the mixing, baking, and packaging facilities in a large cookie and cracker manufacturing plant in lowa. The plant manager, who is dedicated to cutting costs but not sacrificing quality and hygiene, has the projected data shown in the table below if the current system were retained for up to its maximum expected life of 3 years. A contract company has proposed a turnkey sanitation system for $5 0 million per year if Nabisco signs on for 4 to 10 years, and $5.$ mil- ion per year for a shorter number of years. Retained AM, $ per Year Close.Down Expense, $ -3,000,000 -2,300,000 -2 500,000 -2,300,000 -2 000,000 -3,000,000 -1,000 00D -3,000,000 -1,000,000 -3 5001000 -500,000 (4) At a MARR = 8% per year, perform a re- placement study for the plant manager with fixed study period of 3 years, when it is an- ticipated that the plant will be shut down due to the age of the facility and projected tech- nological obsolescence. As you perform the study, take into account that regardless of the number of years that the current sanitation system is retained, a one-time close-down\f\f