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Geometry-8th gr

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IF 3a =2b and 4b=9c, find the ratio of a to c in simplest form and show steps.

  • Geometry-8th gr -

    from 3a + 2b , b = 3a/2

    then in
    4b = 9c
    4(3a/2) = 9c
    6a = 9c
    a/c = 9/6 = 3/2

    a:c = 3:2


    or:
    double the first: 6a = 4b
    but 4b = 9c
    so 6a = 9c
    a/c = 9/6 = 3/2

  • Geometry-8th gr -

    Thanks.

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