Question 360614
width of garden = 3
length = 10
area = 30 ft^2
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let the patio width be p
total width will be 3+2p
total length = 10+2p
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Area of patio = 100 ft^2
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Total area = (10+2p)(3+2p)
(10+2p)(3+2p)- 30 = 100
30+26p+4p^2-30=100
4p^2+26p-100=0
/2
2p^2+13p-50=0use quadratic formula
discriminant = 569
p1=(-13+sqrt(562))/4
p1= 2.71 feet the width of patio
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p2= -9.2  negative so ignore
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m.ananth@hotmail.ca