3-49. Find the uniform annual amount that is equivalent to a gradient series in which the first year's payfment is $500, the second year's pay- ment is $600, the third year's payment is $700, and so...

someone solve this but not use excel

Extracted text: 3-49. Find the uniform annual amount that is equivalent to a gradient series in which the first year's payfment is $500, the second year's pay- ment is $600, the third year's payment is $700, and so on, and there is a total of 10 payments. The annual interest rate is 8%.


Extracted text: 47. An expenditure of $20,000 is made to mod- ify a materials-handling system in a small job shop. This modification will result in first-year savings of $2,000, second-year savings of $4,000, and savings of $5,000 per year thereafter. How many years must the system last if a 25% re- tum on investment is required? The system is tailor-made for this job shop and has no salvage value at any time. Use beginning-of-year cash flow convention to solve this problem,