Refer to Narrative 11-1. Calculate the compound interest on an investment of $45,000 at 6% interest, compounded quarterly, for 3 years.

Respuesta :


[tex]A = P(1 + r/n)^{nt}[/tex]
P= 45000
R= 6%
N= 4x/year
T= 3 years

A= $53,802.82
P= $45,000.00

Interest Earned: $8,802.82

Answer:

$880.28

Step-by-step explanation:

We are asked to find the compound interest on an investment of $45,000 at 6% interest, compounded quarterly, for 3 years.

We will use compound interest formula.

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

A = Amount after T years,

P = Principal amount,

r = Annual interest rate in decimal form,

n = Number of times interest is compounded per year,

T = Time in years.

[tex]r=6\%=\frac{6}{100}=0.06[/tex]

[tex]A=\$4500(1+\frac{0.06}{4})^{4*3}[/tex]

[tex]A=\$4500(1+0.015)^{12}[/tex]

[tex]A=\$4500(1.015)^{12}[/tex]

[tex]A=\$4500*1.1956181714615353[/tex]

[tex]A=\$5380.2817715[/tex]

[tex]A\approx \$5380.28[/tex]

Interest would be final amount minus principal amount.

[tex]\text{Interest}=\$5380.28-\$4500[/tex]

[tex]\text{Interest}=\$880.28[/tex]

Therefore, the amount of interest after 3 years would be $880.28.