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At age 10​, a person deposits ​$370 in a savings account paying 2​% interest compounded quarterly. How much money will be in the account 65 years​ later, when he is 75 years​ old? Would his savings have tripled in that​ time?

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To calculate the future value of the savings account after 65 years, we can use the formula for compound interest:

A = P(1 + r/n)^(nt)

Where:
A = the future value of the savings account
P = the initial deposit ($370)
r = the annual interest rate (2% or 0.02)
n = the number of times the interest is compounded per year (quarterly, so n = 4)
t = the number of years (65)

Plugging in the values:

A = 370(1 + 0.02/4)^(4*65)

Calculating the exponent:

A = 370(1 + 0.005)^(260)

A = 370(1.005)^(260)

Using a calculator, we find:

A ≈ 370 * 7.673

A ≈ $2,839.81

Therefore, the amount of money in the account after 65 years would be approximately $2,839.81.

To determine if the savings have tripled, we can compare the final amount with three times the initial deposit:

3 * 370 = $1,110

Since $2,839.81 is greater than $1,110, the savings have indeed tripled in that time.
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