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posted by Gigi on Sunday, January 2, 2011 at 4:35pm.
A triangle has sides w/ lengths of 3x, 5x, and 8x. All of the sides add up to 180. Express the perimeter of the triangle in terms of x. PLEASE HELP!!!!!
3x + 5x + 8x = 180 16x = 180 x = ?
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