Question

Answer for number 5?

Answer 1

You should try to divide 192 by the 4 sides on the rectangle.

Answer 2

The first thing you should know is that the perimeter of a rectangle is given by:
 P = 2L + 2W
 Where,
 L: side
 W: width
 On the other hand we have that the ratio is:
 L / W = 5/3
 Clearing L we have:
 L = (5/3) * (W)
 Substituting in the expression of the perimeter:
 P = 2 ((5/3) * (W)) + 2W
 Rewriting:
 P = (16/3) W
 The perimeter is 192:
 192 = (16/3) W
 We cleared W:
 W = (3/16) * (192)
 W = 36
 Finally we substitute W in the expression for L:
 L = (5/3) * (W)
 L = (5/3) * (36)
 L = 60
 Answer: 
 The width and length are: 
 W = 36 yards 
 L = 60 yards