Suppose you want to build a small walkway around your garden so that there is someplace to walk around and work on your vegetables. The garden measures 20 feet by 30 feet and you want to increase the area of the garden to 1,000 ft2. What is the width?

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jeramy laureano Profile
jeramy laureano answered
(20+x) x (30+x)-600=1000
600+20x+30x+x^2-600=1000
the 600's cancel out
20x+30x+x^2=1000
50x+x^2=1000
50x/50+x^2=1000/50
x^2=20
sqrt x^2=sqrt 20
x=4.4721
x=4.5(approx)

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