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  • one year ago

The length of a rectangular box is 2 units less than its width. If the area of the box is 15 units square. Find the perimeter of the box.

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  1. anonymous
    • one year ago
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    Perimeter of box? Length= w-2 Area= (w)(w-2)=15 \[w^2-2w=15\] \[w^2-2w-15=0\] w= -3, or 5 (but we can just throw out the -3 since the length and width can't be (-)) w=5, and l=3 Perimeter= 2(3)+2(5)=16 units

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