Problema Solution
A rectangular Persian carpet has a perimeter of 240 inches. The length of the carpet is 20 inches more than the width. What are the dimensions of the carpet?
Answer provided by our tutors
The dimensions are x for width, and x+20 for length, the equation for perimeter is P = 2(l+w)
Plug in the dimensions and set it equal to 320. ---> 320 = 2(x+(x+20)) ---> 320 = 2(2x+20)
---> 320 = 4x + 40 ---> 280 = 4x ---> x = 70. Meaning the Length is 90, width is 70.