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dolphi86 [110]
3 years ago
12

Find the accumulated value of an investment of $1500 for 5 years at an interest rate of 7% if the money is a.compounded semiannu

ally b.compounded quarterly c. Compounded monthly d.compounded continuously
Mathematics
1 answer:
melisa1 [442]3 years ago
6 0
A)

\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{compounded amount}\\
P=\textit{original amount deposited}\to &\$1500\\
r=rate\to7\%\to \frac{7}{100}\to &0.07\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{semi-annually, thus twice}
\end{array}\to &2\\

t=years\to &5
\end{cases}
\\\\\\
A=1500\left(1+\frac{0.07}{2}\right)^{2\cdot 5}

b)

\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{compounded amount}\\
P=\textit{original amount deposited}\to &\$1500\\
r=rate\to7\%\to \frac{7}{100}\to &0.07\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{quarterly, 4 quarters, thus}
\end{array}\to &4\\

t=years\to &5
\end{cases}
\\\\\\
A=1500\left(1+\frac{0.07}{4}\right)^{4\cdot 5}

c)

\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{compounded amount}\\
P=\textit{original amount deposited}\to &\$1500\\
r=rate\to7\%\to \frac{7}{100}\to &0.07\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{monthly, 12 months, thus}
\end{array}\to &12\\

t=years\to &5
\end{cases}
\\\\\\
A=1500\left(1+\frac{0.07}{12}\right)^{12\cdot 5}

d)

\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=Pe^{rt}
\quad 
\begin{cases}
A=\textit{compounded amount}\\
P=\textit{original amount deposited}\to &\$1500\\
r=rate\to7\%\to \frac{7}{100}\to &0.07\\


t=years\to &5
\end{cases}
\\\\\\
A=1500e^{0.07\cdot 5}
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