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Dave and Jane Wells have a new rectangular driveway. The perimeter of the driveway is 168 feet. the length is 12 feet longer than three times the width. What are the dimensions of the driveway?
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P=L+W L= 12+3W (12+3W)+ W =168 12+4W=168 W=168-12/4 W=39 L=12+3(39) L=129 length = 129 width = 39 Check: P= 129+39=168ft
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