Problema Solution
The perimeter of a rectangular photo is 72 cm. The length is twice the width.
What are the length and width of the photo?
Answer provided by our tutors
let
l = the length of the rectangular photo
w = the width of the rectangular photo
The perimeter of a rectangular photo is 72 cm.
2(l + w) = 72 divide both sides by 2
l + w = 36
The length is twice the width.
l = 2w
by solving the system of equations
l + w = 36
l = 2w
we find
l = 24 cm
w = 12 cm
click here to see the step by step solution of the system of equations
the length is 24 cm.
the width is 12 cm.