Find the total amount a college student has in a savings account if ​$5 comma 000 was invested and earned 7​% compounded semiannually for 9 years. Use Upper A equals Upper P (1 plus StartFraction n Over n EndFraction )Superscript nt Baseline .

Respuesta :

Answer:

$ 9287.45

Step-by-step explanation:

Since, the amount formula in compound interest,

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]

Where,

P = principal amount,

r = rate per period,

n = number of periods per year,

Here, P = $ 5,000, r = 7% = 0.07, t = 9 years, n = 2 (semiannual in a year),

Thus, the amount after 9 years,

[tex]A=5000(1+\frac{0.07}{2})^{18}[/tex]

[tex]=5000(1+0.035)^{18}[/tex]

[tex]=5000(1.035)^{18}[/tex]

= $ 9287.45