SOLUTION: the lengths of the sides of a triangle are 2x, x+4, and 13 inches. If the perimeter of the triangle is 35 inches, what is the value of x?

Algebra ->  Problems-with-consecutive-odd-even-integers -> SOLUTION: the lengths of the sides of a triangle are 2x, x+4, and 13 inches. If the perimeter of the triangle is 35 inches, what is the value of x?      Log On


   

Question 908890: the lengths of the sides of a triangle are 2x, x+4, and 13 inches. If the perimeter of the triangle is 35 inches, what is the value of x?
Answer by JulietG(1812) About Me  (Show Source):
You can put this solution on YOUR website!
Perimeter = A + B + C
Perimeter = 35
A = 2x
B = x+4
C = 13
35 = A + B + C
35 = 2X + X + 4 + 13
Subtract 17 from each side
18 = 3X
Divide each side by 3
x = 6
Therefore, the sides are 12,10, and 13
12 + 10 + 13 = 35