What is the dimensions of the yard?

Question

Mr. smith owns a plot of land where the width is equal to three times the length. He only has 480 yards of fencing material. what would be the dimensions of the yard if he used all of his fencing material?

Answer 1

The equations is: 

 

perimeter = 2l + 2w 

 

w = 3l 

 

Thus, 

 

480 = 2l + 2(3l) 

480 = 2L + 6L 

480 = 8L 

 

60 = L 

 

480= 2(60) + 2w 

480 = 120 + 2w 

360 = 2w 

 

180 = W