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Math Help - help to breakdown 15849 = 5000 * {1 - [(1 + 10%)] -4} /10% ...

  1. #1
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    help to breakdown 15849 = 5000 * {1 - [(1 + 10%)] -4} /10% ...

    hello guys,

    another problem here which require your explanation here... I dont see how that formula before will obtain 15,849, i'm not too sure if the texbook meant 50,000 and not 5000. thanks in advance for your help...

    15849 = 5000 * {1 - [(1 + 10%)] -4} /10%
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  2. #2
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    Re: help to breakdown 15849 = 5000 * {1 - [(1 + 10%)] -4} /10% ...

    Quote Originally Posted by schia View Post
    hello guys,

    another problem here which require your explanation here... I dont see how that formula before will obtain 15,849, i'm not too sure if the texbook meant 50,000 and not 5000. thanks in advance for your help...

    15849 = 5000 * {1 - [(1 + 10%)] -4} /10%
    1. Re-write the percentages by decimal numbers:

    5000 \cdot  \frac{1 - (1 + 0.1)^{-4}}{0,1}

    2. Calculate the inner brackets first:

    5000 \cdot  \frac{1 - 0.683013455}{0,1}

    50000 \cdot  0.316986544 \approx 15849.32723
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  3. #3
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    Re: help to breakdown 15849 = 5000 * {1 - [(1 + 10%)] -4} /10% ...

    Hey schia.

    These units are not right: you are using percentages so does this refer to a percentage of some unit or just a straight fraction?
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