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Ilia_Sergeevich [38]
1 year ago
13

Tasha invests in an account that pays 1.5% compound interest annually. She uses the expression P(1+r)t to find the total value o

f the account after t years. If Tasha invested $3,000 , what is the value of the account after 5 years? PLEASE HELP!!!!!!!
Mathematics
2 answers:
zhenek [66]1 year ago
5 0
\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$3000\\
r=rate\to 1.5\%\to \frac{1.5}{100}\to &0.015\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &5
\end{cases}
\\\\\\
A=3000\left(1+\frac{0.015}{1}\right)^{1\cdot 5}\implies A=3000(1.015)^5\implies A\approx 3231.852
hammer [34]1 year ago
5 0

Answer:

The value of the account after 5 years is 3231,85

Step-by-step explanation:

The formula of interest is A=P (1+r)ⁿ

A=Final amount  

P= Principal ( deposit invested)  

r= interest rate

n= time

So,  in this case

P=$3,000

r= 1.5% or 0,015

n= 5

Replacing

A=3000(1+0,015)^5

A=3231,85

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Answer:

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Since the confidence is 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,7)".And we see that t_{\alpha/2}=2.365

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