451 HW #4 - # 10.11 first cost interest Time 0 1 2 3 4 5 6...

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# 10.11 first cost 20 interest 0.12 Time Costs NPV EACcost EACfc fc+cost 0 -20 1 -8 $7.14 $8.00 $22.40 3040% 2 -13 $17.51 $10.36 $11.83 2219% 3 -18 $30.32 $12.62 $8.33 2095% 4 -23 $44.94 $14.79 $6.58 2138% 5 -28 $60.82 $16.87 $5.55 2242% 6 -33 $77.54 $18.86 $4.86 2372% 7 -38 $94.73 $20.76 $4.38 2514% 8 -43 $112.10 $22.57 $4.03 2659% 9 -48 $129.41 $24.29 $3.75 2804% 10 -53 $146.47 $25.92 $3.54 2946% 11 -58 $163.15 $27.48 $3.37 3084% Economic life = 3 years # 10.13 first cost 20000 interest 0.1 installation 5000 removal 0 total fc 25000 Year 1 2 3 4 500% sv 16000 13000 11000 10000 950000% 5000 8000 11000 14000 1700000% EACfc $27,500.00 $14,404.76 $10,052.87 $7,886.77 659494% NPV $4,545.45 $11,157.02 $19,421.49 $28,983.68 3953934% EAC $5,000.00 $6,428.57 $7,809.67 $9,143.50 1043038% EACto $32,500.00 $20,833.33 $17,862.54 $17,030.27 1702531% EAWsv $16,000.00 $6,190.48 $3,323.26 $2,154.71 155608% EACto-EACsv $16,500.00 $14,642.86 $14,539.27 $14,875.57 1546924% minimum Economic life = 3 years # 10.15 fc interest 0.08 time sv costs Marginal Costs 0 10000 1 8000 1250 4050 2 6000 1450 4090 3 4000 1750 4230
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4 2000 2250 4570 # 10.28 fc 120000 interest 0.06 time costs NPV EACcost EACfc cost+fc 1 0 $0.00 $0.00 $127,200.00 12720000% 2 0 $0.00 $0.00 $65,452.43 6545243% 3 -10000 $8,396.19 $3,141.10 $44,893.18 4803428% 4 -20000 $24,238.07 $6,994.90 $34,630.98 4162588% 5 -30000 $46,655.81 $11,075.92 $28,487.57 3956349% 6 -40000 $74,854.23 $15,222.55 $24,403.52 3962607% 7 -50000 $108,107.09 $19,365.77 $21,496.20 4086197% 8 -120000 $183,396.57 $29,533.44 $19,324.31 4885775% Optimal policy = 5 years EAC for optimal policy = $39,563.49 # 10.29 first cost 19500 interest 0.09 Year 1 2 3 4 500% sv 13400 10470 8126 6250.8 506318% 50 50 50 275 50000% EACfc $21,255.00 $11,085.14 $7,703.57 $6,019.04 501330% NPV $45.87 $87.96 $126.56 $321.38 64635% EAC $50.00 $50.00 $50.00 $99.20
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451 HW #4 - # 10.11 first cost interest Time 0 1 2 3 4 5 6...

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