the length of a rectangle is 5 less than twice the width. If the perimeter of the rectangle is 146 cm, find the dimensions of the rectangle.

Answer 1

If y is the length of the rectangle and x is the width of the rectangle then by the assumptions we have that 2x+2y=146 and y=2x-5. Substituting the second equation into the first we obtain the equation 6x-10=146 which is the same as 6x=156. Therefore, x=26 and y=(2)(26)-5=52-5=47.

Answer 2

26 cm and 47 cm

26+47 = 73

73 x 2 = 146 cm