Respuesta :
Answer = $3,140.64
EXPLANATION
Given,
Amount, A = 10,364.10
Rate, r = 2.3
Number of times interest is compounded per year, n = 1
Time (in years), t = 1
Principal, P = ?
Formula: A = P [tex](1 + \frac{r}{n} )^{nt} [/tex]
10,364.10 = P [tex]( 1 + \frac{2.3}{1} )^{1} [/tex]
10,364.10 = P + 2.3P
10,364.10 = 3.3P
P = [tex] \frac{10,364.10}{3.3} [/tex]
P = 3,140.64 (Rounded off to the nearest cent)
EXPLANATION
Given,
Amount, A = 10,364.10
Rate, r = 2.3
Number of times interest is compounded per year, n = 1
Time (in years), t = 1
Principal, P = ?
Formula: A = P [tex](1 + \frac{r}{n} )^{nt} [/tex]
10,364.10 = P [tex]( 1 + \frac{2.3}{1} )^{1} [/tex]
10,364.10 = P + 2.3P
10,364.10 = 3.3P
P = [tex] \frac{10,364.10}{3.3} [/tex]
P = 3,140.64 (Rounded off to the nearest cent)
Answer:
The amount needed in the account is $ 91,651.91 .
Step-by-step explanation:
This can be solved applying the annuity formula for a present value.
The annual withdraw is P=$10,364.10.
The interest rate is r=2.3%, compounded anually.
The period for the withdrawals is n=10 years.
The amount needed in the account is equal to the present value ot the withdrawals:
[tex]PV=\sum_{k=1}^{10} \dfrac{P}{(1+r)^k}=\dfrac{P}{r}\left[1-(1+r})^{-10}\right]\\\\\\ PV=\dfrac{10,364.10}{0.023}\left[1-(1.023})^{-10}\right]\\\\\\PV=450,613.04\left[1-0.80\right]\\\\\\PV=450,613.04*0.20\\\\\\PV= 91,651.91[/tex]