Problema Solution
A rectangular room is twice as long as it is wide, and its perimeter is 36 meters. Find the length of the room.
Answer provided by our tutors
let
l = the length of the room
w = the width of the room
P = 36 m is the perimeter
a rectangular room is twice as long as it is wide
l = 2w
the perimeter is 36 meters
P = 2(l + w)
2(l +w ) = 36 divide both sides by 2
l + w = 18
by solving the system of equations
l = 2w
l + w = 18
we find
l = 12 m
w = 6 m
click here to see the step b y step solution of the system of equations
the length of the room is 12 meters.