A length of a rectangle is 8 cm more than 3 times it's width. The perimeter of the rectangle is 64 cm. What are the dimensions of the rectangle

Question

A length of a rectangle is 8 cm more than 3 times it's width. The perimeter of the rectangle is 64 cm. What are the dimensions of the rectangle

Answer 1

W   is width

 

8 + 3W   is length

 

Perimeter = 2(length) + 2(Width)

 

64 = 2(8 + 3W) + 2W

 

64 = 16 + 6W + 2W

 

64 = 16 + 8W

 

48 = 8W 

 

6 = W

 

width is 6, length is 26