Solved by hand for one machine shop, six single-sum problems run from saving toward a lathe to comparing two sale offers in this MT217 Unit 4 time value set. Searches like "mt 217 unit 4 assignment example", "mt217 unit 4 sample" and "mt217 unit 4 example" land here.
What a finished MT217 Unit 4 time value problem set looks like
Six numbered problems on about four pages. The shop sets aside 40,000 dollars today at 5 percent for four years and will have 48,620.25, the factor 1.215506 shown. To hold 85,000 in six years at 4.5 percent, it needs 65,271.14 today. A deposit of 30,000 that becomes 42,000 in five years earned 6.96 percent a year. At 7 percent, 25,000 takes 6.95 years to reach 40,000. Quarterly compounding at 8 percent gives an effective rate of 8.24 percent, so 20,000 grows to 25,364.84 in three years rather than 25,194.24. The last problem weighs 50,000 now for an old press against 62,000 in three years; at 8 percent the later sum is worth 49,217.60 today, and the shop takes the cash.
How a MT217 Unit 4 example is structured
Every problem uses the same four-part layout, so a grader can find any element instantly. Given values come first as a short list, with the rate and number of periods labeled and the compounding frequency stated. Next comes the formula in symbols, solved for the unknown before any number is entered, so the algebra and the arithmetic never blur together. Substitution follows, the factor computed to six decimals so rounding happens only at the end. The result appears to the cent, or to two decimals for a rate or a time. One interpretive sentence finishes each problem, tying the figure to the shop's decision. The problems run from the plainest, future value, to the ones that solve for rate and time, and the last combines discounting with a choice between two offers.
Givens listed and labeled
Present value, future value, rate and periods are listed with units before each problem, with the compounding frequency named explicitly.
Solving for the unknown first
The rate and time problems rearrange the formula in symbols before substitution, taking a root for the rate and logarithms for the years.
Factors kept to six places
Values like 1.215506 and 0.767896 are carried unrounded, so the final figures match a financial calculator to the cent.
Quarterly against annual
The same 8 percent produces 170.60 dollars more over three years when compounded quarterly, and the effective rate of 8.24 percent explains why.
Cash now or more later
Discounting 62,000 back three years gives 49,217.60, just under 50,000, so the paper favors the immediate offer and notes how close the call was.
Where marks go in MT217 Unit 4
Method carries most of the credit in this set. A result without its formula and substitution leaves a grader nothing to award partial credit for when the final figure is off. Quarterly compounding handled with an annual rate, or a period count left in years, produces the errors graders see most often on single-sum problems. Rounding factors to two decimals early shifts answers by dollars and makes a correct method look wrong. Solving for a rate by trial and error without showing the rearranged formula costs method credit in many sections. Answers without units or labels, a figure with no dollar sign or percent, lose small amounts that add up. Interpretation is often required and often skipped; a number that never meets the shop's decision is unfinished.
Get a MT217 Unit 4 example written to your instructions
Attach the Unit 4 problems exactly as assigned, the rubric, and any rule on calculators or spreadsheets. Each problem comes back laid out with givens, formula, substitution and result, factors carried to six decimals and one closing sentence on what the figure means. There is no fee for an initial sample, typically ready in 24-48h.
MT217 Unit 4 questions, answered
Can I use a financial calculator instead of the formula?
Most sections accept calculator work, but the formula usually still needs to appear so a grader can see the setup. The sample shows the formula and substitution for each problem and could add the calculator entries beneath as a check. If your instructor requires keystrokes or spreadsheet functions instead, the custom version follows that rule.
Why carry factors to six decimals?
Because rounding early compounds. A factor of 1.22 instead of 1.215506 changes a 40,000 dollar future value by almost 180 dollars, a gap a grader could easily read as a method error. Carrying full precision and rounding only the final answer keeps results consistent with calculators and answer keys, which is what graders usually compare against.
How is the rate solved in problem three?
By rearranging the future value formula: divide 42,000 by 30,000, take the fifth root of 1.4, and subtract one, giving 6.96 percent. The sample shows the rearrangement in symbols before entering numbers. Solving for time in problem four uses logarithms in the same way, dividing the log of 1.6 by the log of 1.07.