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He length of a rectangle is 7 ft more than twice the width, and the area of the rectangle is 99 ft2 . find the dimensions of the rectangle.
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Aug 1, 2018
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He length of a rectangle is 7 ft more than twice the width, and the area of the rectangle is 99 ft2 . find the dimensions of the rectangle.
Mathematics
high-school
Ronise
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Ronise
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Let the width be x
Length= x+7
Area=lw
99=(x+7)(x)
99=x
²+7x
0=x²+7x-99
x= -14.04 or x=7.04
Since a length cannot be negative, the width is 7.04 ft and the length (7.04+7)=14.07 ft
Hope I helped :)
Chinmoy Samanta
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Aug 7, 2018
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Chinmoy Samanta
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