Asked by Annonymous
A rectangular garden covers 16,000 ft2. Its length is 60 ft longer than its width.
What is the width of the garden?
What is the width of the garden?
Answers
Answered by
Annonymous
100
Answered by
Reiny
width --- x
length ----x+60
x(x+60) = 16000
x^2 + 60x = 16000
completing the square is easy here
x^2 + 60x + 900 = 900+16000
(x+30)^2 = 16900
take √
x+30 = 130
x = 100
width is 100 ft, length is 160 ft
length ----x+60
x(x+60) = 16000
x^2 + 60x = 16000
completing the square is easy here
x^2 + 60x + 900 = 900+16000
(x+30)^2 = 16900
take √
x+30 = 130
x = 100
width is 100 ft, length is 160 ft
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