Respuesta :
Answer:
$4196.58
Step-by-step explanation:
Compound formula =
A = P(1+r)^n
P = Primary
R = Rate
N = Time
Amount = $1000(1+0.096/12)^(15*12)
=
$4196.58263959721
=
$4196.58
Using compound interest, it is found that $42,892.04 needs to be invested.
Compound interest:
[tex]A(t) = P\left(1 + \frac{r}{n}\right)^{nt}[/tex]
- A(t) is the amount of money after t years.
- P is the principal(the initial sum of money).
- r is the interest rate(as a decimal value).
- n is the number of times that interest is compounded per year.
- t is the time in years for which the money is invested or borrowed.
In this problem:
- Interest of 9.6%, hence [tex]r = 0.096[/tex].
- Compounded monthly, hence [tex]n = 12[/tex].
- 15 years, hence [tex]t = 15[/tex].
- $1,000 withdrawn monthly for these entire 15 years, hence [tex]A(t) = 1000(15)(12) = 180000[/tex]
To find the amount that need to be invested, we solve for P, hence:
[tex]A(t) = P\left(1 + \frac{r}{n}\right)^{nt}[/tex]
[tex]180000 = P\left(1 + \frac{0.096}{12}\right)^{12(15)}[/tex]
[tex](1.008)^{180}P = 180000[/tex]
[tex]P = \frac{180000}{(1.008)^{180}}[/tex]
[tex]P = 42892.04[/tex]
$42,892.04 needs to be invested.
A similar problem is given at https://brainly.com/question/24507395