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Math Help - Help needed on simple algebra

  1. #1
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    Help needed on simple algebra

    Just a simple question. How do we find R if it is given by the equation

    [(100-R)^0.5]+[(400-R)^0.5]=20

    I have tried taking the natural logs on both sides of the equation, but it does not return the correct answer, which is 93.75.

    Many thanks in advance.
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by kenobings View Post
    Just a simple question. How do we find R if it is given by the equation

    [(100-R)^0.5]+[(400-R)^0.5]=20

    I have tried taking the natural logs on both sides of the equation, but it does not return the correct answer, which is 93.75.

    Many thanks in advance.
    your question is answered here http://www.mathhelpforum.com/math-he...ra-needed.html

    please do not double post. it is against the rules
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