SOLUTION: The perimeter of a rhombus is 12x+28 feet. Factor this expression. Then find the length of one side if x=8.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: The perimeter of a rhombus is 12x+28 feet. Factor this expression. Then find the length of one side if x=8.      Log On


   

Question 394063: The perimeter of a rhombus is 12x+28 feet. Factor this expression. Then find the length of one side if x=8.
Answer by pie90010(44) About Me  (Show Source):
You can put this solution on YOUR website!
all sides of a rhombus are congruent, so if
+P+=+12X+%2B+28+ and +x+=+8+
then just plug it in, and divide the perimeter by 4
+P+=+12%288%29+%2B+28+
+P+=+96+%2B+28+
+P+=+124+
So , if 4 congruent sides equal 124, then 1 side would be
+124+%2F+4+=+31+
so each side equals 31 feet