A regular stained glass window is 2 feet by 4 feet. A clear glass border is constructed around the stained glass window. The wid
th of the border is equal and was made out of 7 square feet of clear glass. What is the width of the border?
1 answer:
Let x = width of border
Area is given to be 7 square feet or 49.
49 = (2x + 2)(2x + 4)
Solve for x.
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