Problema Solution
A rectangle has a perimeter of 68 in. The length is 2 in. less than 3 times the width. What is the length and width?
Answer provided by our tutors
let
l = the length of the rectangle
w = the width of the rectangle
P = 68 in the perimeter
the length is 2 in. less than 3 times the width:
l = 3w - 2
the perimeter of a rectangle P = 2(l + w):
2(l + w) = 68 divide both sides by 2
l + w = 34
by solving the system of equations:
l = 3w - 2
l + w = 34
we find:
l = 25 in
w = 9 in
click here to see the step by step solution of the system of equations:
the length is 25 inches and the width is 9 inches.