Problema Solution
the length of a rectangle is 3 centimeters more than its width. The area is 108 square centimeters. Find the length and width of the rectangle
Answer provided by our tutors
Let 'x' represent the width of the rectangle, x>=0.
The the length is '3 + x'.
Since the area equals the width multiplied by the length we have:
x(3 + x) = 108
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click here to see the equation solved for x
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x = 9 cm
We need to ignore the negative solution -12 since the width can not be negative number.
3 + x = 3 + 12 cm
The length of the rectangle is 12 cm.
The width of the rectangle is 9 cm.