You're prepared to make monthly payments of $320, beginning at the end of this month, into an account that pays 11 percent interest compounded monthly. How many payments will you have made when your account balance reaches $24,354?

Respuesta :

Answer:

You would have made  58.00 payments

Explanation:

From the given information:

The future value of the annuity   = [tex]Pmt \times [\dfrac{(1+rate)^t-1}{rate}][/tex]

[tex]24354 = 320 \times [\dfrac{(1+\dfrac{0.11}{12})^t -1 }{\dfrac{0.11}{12}}][/tex]

[tex]76.11 = [\dfrac{(1+\dfrac{0.11}{12})^t -1 }{\dfrac{0.11}{12}}][/tex]

[tex]76.11 \times {\dfrac{0.11}{12} = [{(1+\dfrac{0.11}{12})^t -1}][/tex]

[tex](1+ (76.11 \times {\dfrac{0.11}{12})) = [{(1+\dfrac{0.11}{12})^t }][/tex]

[tex]In (1+ (76.11 \times {\dfrac{0.11}{12})) = t \ In [{(1+\dfrac{0.11}{12})}][/tex]

[tex]\mathtt{t = \dfrac{In (1+ (76.11 \times {\dfrac{0.11}{12})}} { In [(1+ \dfrac{0.11}{12}]}}}[/tex]

t = 58.00