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The length of a rectangle is one foot less than twice the width. The area of the rectangle is 120 square feet. Find the dimensions of the rectangle.

Respuesta :

Length: 2x-1, width: x

A=LW

120=x(2x-1)   120=2x^2-x   0=2x^2-x-120, Factor (x-8)(2x+15)=0

x=8 is the width and 15 is the length

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