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OpenStudy (anonymous):
The length of a rectangle exceeds its width by 3 inches, and the area is 54 square inches. What are the length and width of the rectangle?
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OpenStudy (anonymous):
l=w+3
OpenStudy (anonymous):
length=width+3 make sense right?
OpenStudy (anonymous):
length* width= area w *( w+3 ) =54
OpenStudy (anonymous):
w^2+3w=54
OpenStudy (anonymous):
w^2+3w-54 (w+9)(w-6)=0 w is either -9 or 6, but width can't be negative number so it is 6 length is 3 more than width so it is 9
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