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anonymous

  • one year ago

How much will $1000 deposited in an account earning 7% interest compounded annually be worth in 20 years?

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  1. SolomonZelman
    • one year ago
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    This is the formula you need: \(\Large\color{blue}{ \displaystyle {\rm A}= {\rm P}\left(1+\frac{ {\rm r} }{ {\rm n} }\right)^{{\rm n} \times {\rm t}} }\) \(\Large\color{blue}{ \displaystyle {\rm r} }\) - the interest rate (written as a decimal) \(\Large\color{blue}{ \displaystyle {\rm n} }\) - the number of times that interest is compounded per year. \(\Large\color{blue}{ \displaystyle {\rm t} }\) - number of years (of investment). \(\Large\color{blue}{ \displaystyle {\rm P} }\) - the initial amount (the original deposite that you made into the bank). \(\Large\color{blue}{ \displaystyle {\rm A} }\) - the amount that you will get after this investment.

  2. SolomonZelman
    • one year ago
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    P = 1000 (that is what you begin with) r = 0.07 (because your interestrate is 7%, and that is 0.07 as a decimal) n = 1 (because it says "compunded annually") t = 20 (because it is asking you for the total amount after 20 years of investment)

  3. SolomonZelman
    • one year ago
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    All you have to do is to plug your numbers and calculate the value of the investment (the value of A). If you have questions, ask.

  4. anonymous
    • one year ago
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    Ok thanks

  5. SolomonZelman
    • one year ago
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    yw

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