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The area of a rectangle is 20 square feet. Let y be the width and x be the length. Write a function for the perimeter of the rectangle as a function of x.

 Jan 14, 2020
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I would assume it is X=20/Y.

As an example if X=5 and Y=4 you have 5*4=20. Conversely 20/5=4 and 20/4=5.

 
 Jan 14, 2020

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