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5. (10 points) Xerex Atomics has purchased a new metal contouring machine for use in a milling procedure. The machine has the following cost details: Lathe First Cost -$2,200,000 -$550,000 -$100,000 $220,000 Annual operating cost (AOC) Rebuild cost in year 6 Salvage value Estimated life, years Labor wages per hour People Number of valves built per hour 12 $60 3 6 Alternatively, Xerex can purchase each valve for $120 from a contractor. At a MARR of 10%, calculate Xerex's breakeven quantity between build/buy. 2. (10 points) ABC has the following two mutually exclusive alternative machines. Based on rate of return (ROR) analysis, using a MARR (A1) of 10%, which machine should be selected? First cost, $ Annual Operating cost $ Salvage value Life, years Machine A -10,000 -1,500 2,000 3 Machine B -25,000 -500 6,000 6 7. (15 points) The cash flows for Machine A are provided in the following table. Fist cost, $ AOC, $/year Machine A -900,000 -6,000 year 1, increasing By $1,500 per year 50,000 10 Salvage value, $ Life, years Assume MARR is 10%, calculate the following: 1. Capital Recovery: 2. Annual Worth