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Nimfa-mama [501]
3 years ago
12

Listen

Mathematics
2 answers:
makkiz [27]3 years ago
7 0

Answer:

The answer is the third equation. A = 250*(1 +0.016)^(0.75)

Step-by-step explanation:

Since Javier deposited $250 into an account with annual interest rate, then as the years passes his account will grow in the manner shown below:

account(0) = 250

account(1) = account(0)*(1 + 1.6/100) = account(0)*(1 + 0.016) = account(0)*1.016

account(2) = account(1)*1.016 = account(0)*1.016*1.016 = account(0)*(1.016)²

account(3) = account(2)*1.016 = account(0)*(1.016)²*1.016 = account(0)*(1.016)³

account(n) = account(0)*(1.016)^n

Where n is the number of years, account(0) is the initial amount. In this case only 9 months have passed, so we need to convert this value to years, dividing it by 12, which is 9/12 = 0.75. The initial amount was 250, so the equation is:

A = 250*(1.016)^(0.75)

The answer is the third equation.

PolarNik [594]3 years ago
5 0

Answer:

A = 250(1+0.016)^{0.75}

Step-by-step explanation:

The equation that represents the balance is expressed using the formula

A = P(1+r)^{n} \\

A is the amount after 9 months

P is the principal (amount deposited)

r is the interest rate

n is the time

Given P = $250, r = 1.6% = 0.0016, t = \frac{9}{12}\ years (months converted to years)

Substituting the values into the formula we have;

A = 250(1+0.016)^{\frac{9}{12} }\\A = 250(1+0.016)^{0.75}

This gives the required answer

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