Monty Company is considering buying a machine for $170000 with an estimated life of 10 years and no salvage value. The straight-line method of...

Monty Company is considering buying a machine for $170000 with an estimated life of 10 years and no salvage value. The straight-line method of depreciation will be used. The machine is expected to generate net income of $3000 each year. The cash payback on this investment is