SOLUTION: the width of a rectangle is x centimetres the length of the rectangle is (x+4) centimetre find an expression in terms of x if the perimeter is 54 centimetres

Algebra ->  Rectangles -> SOLUTION: the width of a rectangle is x centimetres the length of the rectangle is (x+4) centimetre find an expression in terms of x if the perimeter is 54 centimetres      Log On


   

Question 861421: the width of a rectangle is x centimetres
the length of the rectangle is (x+4) centimetre
find an expression in terms of x if the perimeter is 54 centimetres
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x%2Bx%2B%28x%2B4%29%2B%28x%2B4%29=54
perimeter is highlight%28x%2Bx%2B%28x%2B4%29%2B%28x%2B4%29%29.
That is an expression for perimeter in terms of x.

Did you want to solve for x, knowing the perimeter?
highlight_green%284x%2B8%29=54
4x=46
2x=23
x=11%261%2F2