Problema Solution
The length of a rectangle mailing label is 4 centimeters less than twice the width. The perimeter is 64 centimeters. find the dimensions of the label. The width is _______ centimeters. The length is _____centimeters.
Answer provided by our tutors
Let
'l' be the length of the label
'w' be the width of the label
l = 2*w - 4 (length is 4 centimeters less than twice the width)
2*l + 2*w = 64 (perimeter of the rectangle)
To find l and w we need to solve the system of 2 linear equations
l = 2*w - 4
2*l + 2*w = 64 both sides divide by 2
l = 2*w - 4
l + w = 32
2*w - 4 + w = 32
w = 12 cm
l = 20 cm
The width is 12 centimeters. The length is 20 centimeters.