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math 11

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An investment earning simple interest rate of 1.10% per annum for a term of 5 years earned 82.50 in interest. What was the principal?

  • math 11 -

    oh sry i forgot to ask these questions.. to help you answer this one its a long one

    1.calculate the final value after 10 years if you invest 5000.0 at 2.5% compounded annualy

    2.Calculate the amount of interest earned in 10 years on 1000.00 invested at 3.00% per annum, compounded monthly

    3.calculate the interest due on the following credit card balanced

    a)an unpaid balance of 1629.53 at a rate of 19.50% for 21 days

    b) an unpaid balance of 2639.99 at a rate of 22.95% for 30 days.

  • math 11 -

    I got $87.04

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