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Math Help - Percents

  1. #1
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    Percents

    How can I solve this:

    If a certain price goes down 5,8%
    how many procents the price should
    rise that it would be as much as it
    used to be.

    Thank you!
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  2. #2
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    Quote Originally Posted by Liza88 View Post
    How can I solve this:

    If a certain price goes down 5,8%
    how many procents the price should
    rise that it would be as much as it
    used to be.

    Thank you!
    wat do u mean by ur question? if the price goes down by 5.8% say for example $25 that will be $23.55.
    then the rate that it should increase to be $25 again

    if that's it, then you'll need $1.45 for it be $25 again.

    R=\frac{P}{B}

    R=\frac{1.45}{23.55}

    R=6.15\%

    i'm not really sure bout it. correct me if I am wrong.
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  3. #3
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    Let v1 be the first price, v2 the second(down price), p2 be the percentage required.

    now you have

    v1-0.058v1=v2

    v2+p2 v2=v1

    From here you can find p2, which is the percentage required. (answer p2 = 6.15%). As it is mentioned in the above post.
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  4. #4
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    Quote Originally Posted by javax View Post
    Let v1 be the first price, v2 the second(down price), p2 be the percentage required.

    now you have

    v1-0.058v1=v2

    v2+p2 v2=v1

    From here you can find p2, which is the percentage required. (answer p2 = 6.15%). As it is mentioned in the above post.

    thanks javax for the additional info.
    Last edited by princess_21; February 4th 2009 at 12:15 AM.
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