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Semmy [17]
3 years ago
14

The total amount of money in a savings account after t years is given by the function A=1000(1.023)^t .

Mathematics
2 answers:
katrin2010 [14]3 years ago
8 0

Answer:

The total amount of money in a saving account after t years is given by:

A = 1000(1.023)^t

we can write this function as;

A = 1000(1+0.023)^t             .....[1]

Use the formula:-

A = P(1+\frac{r}{n})^{nt} ; where

P = Principal amount (the initial amount borrow or deposit)


r= annual rate of interest (as a decimal)

t = number of years the amount is deposited or borrowed for.

A =amount of money accumulated after n years, including interest.

n = number of times the interest per year  

Now, the function can be rewritten to identify the monthly interest rate is;

A = P(1+\frac{0.023}{12})^{12t}

here, n =12 ;

For monthly rate of interest =  \frac{r}{12} = \frac{0.023}{12} =0.0019(approx) or 0.19% .

Therefore, the approximate monthly rate of interest is, 0.19%





lorasvet [3.4K]3 years ago
3 0
The function is A=1000(1.023 1/2)^12t
and the interest is 0.19%

I hope this helps 

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