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* Lin had a rectangular carpet. It was too large for her living room, and so on each side of the carpet, she cut a stripe 1 foot wide. As a result, the area of the carpet became 26 ft2 smaller. What was
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Jan 18, 2019
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* Lin had a rectangular carpet. It was too large for her living room, and so on each side of the carpet, she cut a stripe 1 foot wide. As a result, the area of the carpet became 26 ft2 smaller. What was the original perimeter of the carpet?
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Vin Burgh
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30 ft Let's assume the original dimension of the carpet was LxW. Now let's have Lin cut a 1 foot wide strip from the length. That gives her a strip that's L feet long. She then cuts a strip from the other side, giving her another strip that L feet long. She then cuts a strip from the width, giving her a 3rd strip that's (W-2) feet long. And finally, she cuts a 4th strip that's also W-2 feet long. So the total length of all those strips is L + L + W - 2 + W - 2 = 2L + 2W - 4 feet long. And since all the strips are 1 foot wide, they cover 2L + 2W - 4 square feet. So: 2L + 2W - 4 = 26 2L + 2W = 30 Now the original perimeter of the carpet is 2L + 2W, therefore the original perimeter is 30 feet.
Ilona
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Jan 19, 2019
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Let the original length of the carpet be L and the original width of the carpet W, then
Therefore, the initial perimeter of the carpet is 30 feet.
Billyduc
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Jan 24, 2019
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