The area of a rectangular field is equal to 200 square meters. Its perimeter is equal to 60 meters. Find the width of this rectangle.	Choose one:  A) 5  B) 10  C) 15  D) 20  E) 25
L * W = 200 : area , L is the length and W is the width.   2 L + 2 W = 60 : perimeter   L = 30 - w : solve for L   (30 - W) * W = 200 : substitute in the area equation   W = 10 and L = 20 :   correct answer 10
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The area of a rectangular field is equal to 200 square meters. Its perimeter is equal to 60 meters. Find the width of this rectangle.