math

Billy is framing a picture with a rectangular frame. The frame has a perimeter of 62 inches. The height of the frame is 2⁄3 times the length. Find the dimensions of the rectangle.
a. Define the variable(s)
b. Write an equation to represent the situation.
c. Solve.

im stuck on how to start this

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  1. 2 h + 2 L = 62
    so
    L = 31 - h

    h = 2 L/3
    so
    L = 1.5 h

    1.5 h = 31 - h
    2.5 h = 31
    h = 12.4
    L = 18.6

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  2. i understand most of this, but I'm a bit confused on this part:

    h = 2L/3
    so
    L = 31 - h

    how did you get this?

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  3. if 2 L + 2 h = 62 given
    then L + h = 31
    and L = 31 - h

    if h = 2L/3 given
    then L = 3 h/2 = 1.5 h

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