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A certificate of deposit has $10,000.00 and the bank pays 2.89% interest compounded monthly. After 5 years, what is the account balance?

1 Answer

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Final answer:

To calculate the future value of a certificate of deposit (CD) with compound interest, use the formula A = P(1 + r/n)^(nt), where A is the future value, P is the initial deposit amount, r is the interest rate, n is the number of times interest is compounded per year, and t is the number of years. Plugging in the given values ($10,000, 2.89%, and compounded monthly), the account balance after 5 years is approximately $11,764.40.

Step-by-step explanation:

To calculate the future value of a certificate of deposit (CD), we can use the formula:

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

where:

  • A = the future value of the CD
  • P = the initial deposit amount
  • r = the interest rate (expressed as a decimal)
  • n = the number of times interest is compounded per year
  • t = the number of years

Given that the initial deposit is $10,000.00, the interest rate is 2.89% (0.0289 as a decimal), and interest is compounded monthly (n=12), we can plug these values into the formula to calculate the future value of the CD after 5 years:

A = 10000(1 + 0.0289/12)^(12*5)

Now we can evaluate the expression to find the account balance:

A = 10000(1 + 0.0024067)^60

A ≈ $11,764.40

User Jeff Walters
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