a triangle has a perimeter of 49 inches. the medium side is 7 more than the short side, and the longest side is 5 times the length of the shortest side. find the shortest side
Short side length = x Medium side = x + 7 Long side = 5x Total 49, so x + x + 7 + 5x = 49 If you combine like terms: 7x + 7 = 49 Subtract 7 from both sides 7x = 42 Divide both sides by 7 x = 6 inches
