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Math Help - need help with these 3

  1. #1
    Newbie
    Joined
    Jul 2008
    Posts
    8

    need help with these 3

    Solve for y

    y=p^2(c) p=100 c=1/100




    x=y/z^2 x=4 z=5



    y=pc p=100 c=1/100
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  2. #2
    Member
    Joined
    Jul 2008
    Posts
    78
    You might want to review substitution to learn the concept of substituting the values of the variables. Also you may want to review over the rules for rational exponents (to learn how to convert exponents into radicals and vice versa).

    1)



    2)



    Multiplying both sides by 25, gives y = 100.

    3)



    Hope this helps.
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