# economic engineering

Question description

Assignment:Complete the following problems using an Excel spreadsheet. You must show your work to get full credit. Each student is responsible for completing their own response to the problems.—1. A plant engineer is considering two machines to purchase:Item Model A Model BInitial Cost \$8,000 \$9,000Annual Savings \$1,750 \$2,000Annual Maintenance \$200 \$350Expected Life 8 years 8 yearsSalvage Value \$800 \$900The firm's MARR is 10%. On the basis of the IRR criterion, which machine is the better choice?2. Assume that you are planning on purchasing a Tesla Model 3 for \$35,000. You will be able to make a down payment of \$5,000. The remaining \$30,000 will be financed by the dealer. The dealer computes your monthly payment to be \$775.00 for 48 months of financing. What is the dealer’s annual rate of return on this car loan?3. Consider the following projects with the following sequences of cash flows:Period Net Cash Flown A B C D0 \$45,000 -\$15,000 -\$12,500 \$10,0001 -\$15,000 -\$15,000 \$5,000 -\$9,0002 -\$15,000 -\$15,000 \$5,000 -\$11,5003 -\$20,000 \$60,000 \$3,000 \$10,000a) Which of the projects represent simple investments?b) Which of the projects represent nonsimple investments?c) Compute the i* for each project.d) Which of the projects has no rate of return?4. Consider the following project’s cash flows:n Net Cash Flow0 -\$20,0001 \$7,5002 X3 \$10,000Assume that the project’s IRR is 15%.a) Find the value of X.b) Is the project acceptable at MARR = 12%?5. Consider two investments with the following sequences of cash flows:n Project A Project B0 -\$150,000 -\$175,0001 \$45,000 \$30,0002 \$55,000 \$65,0003 \$75,000 \$95,0004 \$80,000 \$100,000a) Computer the IRR for each investment.b) At MARR = 15%, consider the acceptability of each project.c) If A and B are mutually exclusive projects, which project would you select on the basis of the rate of return on incremental investment?—Formatting:Text Size: All of the text in this assignment needs to be set in 10 or 12-point size. Please resist the temptation to mix and match point sizes. If you doubt your applications intentions, just select all of your text and insure that it is in 10 or 12-point size.Margins: The right and left side can be set for ½” (0.5) margins. Set the top and bottom margins to one (1”). The only text that ends up on the outside of the one-inch margin is the page number.Name Block: Place the name block in the upper left corner of the page. In MS Excel, use the left side cells. In this class the name block only needs to be on the first page. Put your name first, then the class title and then the date. Example:Your Na

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