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What are the dimensions of a rectangle whose length is 0.75 inches longer than its width and has an area of 11.25 square inches?
Wiki User
∙ 12y ago
Let the length be (x+0.75) and the width be x:
length*width = area
(x+0.75)*x = 11.25 square inches
x2+0.75x = 11.25
x2+0.75x-11.25 = 0
Solving the above equation by means of the quadratic equation formula gives a positive value of 3 for x.
Therefore: length = 3.75 inches and width = 3 inches
Check: 3.75*3 = 11.25 square inches
Wiki User
∙ 12y ago
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