Using it's formula, it is found that she will have monthly payments of $1,970.45 to pay off the mortgage.
It is given by:
[tex]A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}[/tex]
In which:
In this problem, the parameters are given as follows:
P = 250000, r = 0.0495, n = 15 x 12 = 180.
Hence:
r/12 = 0.0495/12 = 0.004125.
Hence the monthly payments will be of:
[tex]A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}[/tex]
[tex]A = 250000\frac{0.004125(1 + 0.004125)^{180}}{(1 + 0.004125)^{180} - 1} = 1970.45[/tex]
More can be learned about the monthly payment formula at https://brainly.com/question/27826541
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