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Math Help - Transpose Formulae?

  1. #1
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    Transpose Formulae?

    I must have totally missed an entire module of this, leaving me rather dumfounded!!

    Help!

    1.) Y = 5x - 4 (X)

    2.) E = mgh + ½mv² (H)

    3.) E = mgh + ½mv² (V)

    4.) E = mgh + ½mv² (M)


    Apparently the letters in the brackets are the ones to "Isolate"

    If anyone does help, could you please show me how to work them out for the future,

    Thanks so much in advance,

    D x
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  2. #2
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    Quote Originally Posted by Phoenix1985 View Post
    I must have totally missed an entire module of this, leaving me rather dumfounded!!

    Help!

    1.) Y = 5x - 4 (X)

    2.) E = mgh + ½mv² (H)

    3.) E = mgh + ½mv² (V)

    4.) E = mgh + ½mv² (M)


    Apparently the letters in the brackets are the ones to "Isolate"

    If anyone does help, could you please show me how to work them out for the future,

    Thanks so much in advance,

    D x
    All you're doing is treating all variables except the ones in brackets as constants. You're just rearranging the equations so that the variable in the brackets is the subject.

    E.g.

    3 [tex]E = mgh + \frac{1}{2}mv^2[tex] (v)...

    E - mgh = \frac{1}{2}mv^2

    2(E - mgh) = mv^2

    \frac{2(E - mgh)}{m} = v^2

    \sqrt{\frac{2(E - mgh)}{m}} = v
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  3. #3
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    But its how you get there that confuses me, how come you divide certain aspects?

    Any help with the other ones?
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