there are three machines in the mechanicle angineering lab A ,B , and C and need to be evaluted economically, machine A has first cost of $4500,an annual operating cost(AOE) of $900, a salvage value of $200 and a service life 4 year. machine B has first cost of $3500, an annual operating cost(AOE) of $700, a salvage value of $350, and a service life 4 year. machine C has first cost of $6000, an annual operating cost(AOE) of $50, a salvage value of $100 and a service life 8 year. which machine should be selected ? the MARR is 10% per year. (a) machine A (B) machine B (c) machine C (d) none

Compare the alternatives below using AW and i = 10% per year D -350,000 -35,000 35,000 ∞ First Cost, $ Annual operating cost, $/year Salvage value, $ Life, years с -150,000 - 10,000 15,000 10

A consulting engineering firm is considering two models of SUVs for the company principals. A GM model will have a first cost of $36,000, an operating cost of $4000, and a salvage value of $15,000 after 3 years. A Ford model will have a first cost of $32,000, an operating cost of $3100, and also have a $15,000 resale value, but after 4 years. (a) At an interest rate of 15% per year, which model should the consulting firm buy? Conduct an annual worth analysis. (b) What are the PW values for each vehicle?

A consulting engineering firm is considering two models of SUVs for the company principals. A GM model will have a first cost of $36,000, an operating cost of $4000, and a salvage value of $15,000 after 3 years. A Ford model will have a first cost of $32,000, an operating cost of $3100, and also have a $15,000 resale value, but after 4 years. (a) At an interest rate of 15% per year, which model should the consulting firm buy? Conduct an annual worth analysis. (b) What are the PW values for each vehicle?

A furniture company intends to evaluate whether they want to stick with th equipment (defender) or replace them with the new productive equipment (challenger). The details of the cost required are shown in Table Q3(b) below. Use an interest rate of 20% per year. Items Initial cost eight (8) years ago (RM) Market value (RM) Yearly handling cost (RM) Life time (year) Salvage value (RM) Defender Challenger 450,000 25,000 700,000 160,000 70,000 5 10 50,000 Use the replacement analysis to justify whether the existing equipment is required to be replaced with the new equipment. (ii) If the existing equipment (defender) could be sold in international market, determine how much is the minimum value of the defender so that the challenger could replace the defender now?

An industrial plant has hired a contractor to develop a solar farm nearby for the industrial plant's electricity consumption. During the 3-year construction period, the contractor will need to run a generator to power the construction. Cost analysis from previous projects indicates: Generator Brand Installed Cost Cost per Hour A $22M $500 B $23M $400 C $25M $250 D $30M $150 At the end of 3 years, the generator will have a salvage value equal to the cost of removing them. The generator will operate 6,000 hours per year. The lowest interest rate at which the contractor is willing to invest money is 7%. (The minimum required interest rate for invested money is called the minimum attractive rate of return, or MARR.) Select the alternative with the least present worth of cost. O Choice "C" with $29,872,900 O Choice "B" with $29,298,320 O Choice C with $28,936,450 O Choice "A" with $29,872,900

A consulting engineering firm is considering two models of SUVs for the company principals. A GM model will have a first cost of $36,000, an operating cost of $4000, and a salvage value of $15,000 after 3 years. A Ford model will have a first cost of $32,000, an operating cost of $3100, and also have a $15,000 resale value, but after 4 years. (a) At an interest rate of 15% per year, which model should the consulting firm buy? Conduct an annual worth analysis. (b) What are the PW values for each vehicle? 10 16 -22)

Dexcon Technologies, Inc., is evaluating two alternatives to produce its new plastic filament with tribological (i.e., low friction) properties for creating custom bearings for 3-D printers. The estimates associated with each alternative are shown below. Using a MARR of 8% per year, which alternative has the lower present worth?

A delivery car had a first cost of $34,000, an annual operating cost of $15,000, and an estimated $5000 salvage value after its 6-year life. Due to an economic slowdown, the car will be retained for only 4 years and must be sold now as a used vehicle. At an interest rate of 12% per year, what must the market value of the used vehicle be in order for its AW value to be the same as the AW if it had been kept for its full life cycle? The market value of the used vehicle is determined to be $ 26423

For the cash flows shown, use an annual worth comparison and an interest rate of 12% per year. a) Determine the alternative that is economically best. b) Determine the first cost required for each of the two alternatives not selected in part a) so that all 3 alternatives are equally acceptable.