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    LynnM's Avatar
    LynnM Posts: 34, Reputation: 2
    Junior Member
     
    #1

    Aug 31, 2010, 02:52 PM
    properties of logarithms
    So, here's another question that I am having trouble with:

    [(2log(5)x) / (log(5)3)] - log(5)y = 2

    I followed the steps that were used in a sample question just like this one and I still got the wrong answer... or I just don't know how to finish it. Here's what I've done:

    (2/log(5)3) * log(5)x = 2 + log(5)y

    log(5)x^{2/log(5)3} = 2log(5)5 + log(5)y

    log(5)x^{2/log(5)3} = log(5)(25y)

    x^{2/log(5)3} = 25y

    y = (x^{2/log(5)3}) / 25

    The text solution is:

    y = [(x^{2})/9] ^{1/(log(5)3)}

    I'm lost. Help please!
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
    Uber Member
     
    #2

    Aug 31, 2010, 10:25 PM

    Avoid making multiple threads

    https://www.askmehelpdesk.com/high-s...-x-503610.html

    Thanks!

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