Problema Solution
The perimeter of a rectangle is 150 m. If the length is 15m less than twice the width, find the dimensions of the rectangle.
Answer provided by our tutors
let
l = the length of the rectangle
w = the width of the rectangle
P = 150 m the perimeter
the perimeter of a rectangle is 150 m:
2(l + w) = 150 divide both sides by 2
l + w = 75
the length is 15m less than twice the width:
l = 2w - 15
by solving the system of equations:
l + w = 75
l = 2w - 15
we find:
l = 45 m
w = 30 m
click here to see the step by step solution of the system of equations:
the dimensions of the rectangle are: the length is 45 meters and the width is 30 meters.