application

Question

A rectangle is
5
times as long as it is wide. The perimeter is
48
feet. Find the dimensions

Answer 1

The perimeter of a rectangle is given by the formula P = 2L + 2W 

 

Since the rectangle's length is 5 times its width, L = 5W

 

Since the perimeter is 48,

 

48 = 2L + 2W

 

If you substitute the value of L into the above equation

 

48 = 2(5W) + 2W

 

Now you can solve for W and find L from that