Math

14 cm piece of tape is cut into two pieces. The shorter piece is 2/5 as long as the longer one. which is the length of the shorter piece.

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  1. let the longer piece be x cm
    then the shorter piece is 14-x cm

    14-x = (2/5)x
    times 5
    70 - 5x = 2x
    70 = 7x
    x = 10

    the long piece is 10 cm, the shorter is 4 cm

    check: is 4/10 = 2/5 ? , YES

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