(10 pts) A sewage plant needs to replace a 125 HP motor. An engineer-in-training has found two options Mighty Max Option Sewage R Us Option S5500 85% S1000 S4200 80% S800 Cost Efficiency Salvage value in 10 years Operating costs Power costs Find the number of operating hours per year necessary to justify purchasing the Mighty Max if the cost of money to the company is 490/year. (1 HP 746 W) 15% of original cost year 15% of original cost/year 6 cents/kWh 6 cents/kWh (10 pts) A sewage plant needs to replace a 125 HP motor. An engineer-in-training has found two options Mighty Max Option Sewage R Us Option S5500 85% S1000 S4200 80% S800 Cost Efficiency Salvage value in 10 years Operating costs Power costs Find the number of operating hours per year necessary to justify purchasing the Mighty Max if the cost of money to the company is 490/year. (1 HP 746 W) 15% of original cost year 15% of original cost/year 6 cents/kWh 6 cents/kWh