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10 January, 14:48

The first side of a triangle measures 5 in. less than the second side, the third side is 3 in. more than the first side, and the perimeter is 17 in. How long is the third side? If s represents the length of the second side, which of the following represents the length of the third side?

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  1. 10 January, 15:32
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    First side = x

    second side = x+5

    third side = x+3

    perimeter = 17

    x + x+5 + x+3 = 17

    3x = 17-5-3

    3x = 12-3

    3x = 9

    x = 9/3

    x = 3 in (first side)

    x+5 = 3+5 = 8 in (second side)

    x+3 = 3+3 = 6 in (third side)
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