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aleksandr82 [10.1K]
3 years ago
7

Lucy is going to invest in an account paying an interest rate of 7% compounded daily. How much would Lucy need to invest, to the

nearest dollar, for the value of the account to reach $84,000 in 6 years?
Mathematics
1 answer:
Akimi4 [234]3 years ago
7 0

Answer:

Lucy needs to invest $55,194.16

Step-by-step explanation:

The given information are;

The interest rate of the account = 7% compounded daily

The amount at the end of 6 years = $84,000

The time duration = 6 years

The amount Lucy

The formula for compound interest is

A(t) = P \times \left ( 1 + \dfrac{r}{n} \right )^{n \times t}

Where;

r = The interest rate = 7% = 0.07

n = The number of times a year = 365

t = The number years = 6 years

A(t) =  The amount after 6 years = $84,000

P = The initial amount invested

Therefore, we have;

\$ 84,000 = P \times \left ( 1 + \dfrac{0.07}{365} \right )^{365 \times 6}

P = \dfrac{\$84,000}{\left ( 1 + \dfrac{0.07}{365} \right )^{365 \times 6}}  =\dfrac{\$84,000}{1.522} = \$55,194.16

Therefore, Lucy needs to invest $55,194.16.

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