1. **State the problem:**
We have two payments: $880 today and $1170 in 7 months. We want to find a single payment made today that is equivalent in value, assuming an interest rate of 6.25% per year.
2. **Formula and explanation:**
The formula to find the present value (PV) of a future payment is:
$$PV = \frac{FV}{(1 + r)^t}$$
where $FV$ is the future value, $r$ is the interest rate per period, and $t$ is the time in years.
3. **Calculate the present value of the second payment:**
Given $r = 6.25\% = 0.0625$ per year, and $t = \frac{7}{12}$ years,
$$PV = \frac{1170}{(1 + 0.0625)^{\frac{7}{12}}}$$
4. **Calculate the denominator:**
$$1 + 0.0625 = 1.0625$$
5. **Calculate the exponent:**
$$1.0625^{\frac{7}{12}} = e^{\ln(1.0625) \times \frac{7}{12}}$$
Calculate $\ln(1.0625) \approx 0.060625$,
so exponent = $e^{0.060625 \times \frac{7}{12}} = e^{0.03536} \approx 1.0360$
6. **Calculate present value:**
$$PV = \frac{1170}{1.0360} \approx 1129.35$$
7. **Calculate total equivalent payment today:**
Add the payment today plus the present value of the future payment:
$$880 + 1129.35 = 2009.35$$
**Final answer:**
The single equivalent payment made today is **2009.35**.
Equivalent Payment D45687
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