SOLUTION: The length of a rectangle is 9cm mor than its width. If the area of the rectangle is 76cm^2, find the dimensions. Round to the nearest thousandth if necessary.

Question 328716: The length of a rectangle is 9cm mor than its width. If the area of the rectangle is 76cm^2, find the dimensions. Round to the nearest thousandth if necessary.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
let width be x cm
length = x+9 cm
Area = 76 cm^2
Area = L*W
x(x+9)=76
x^2+9x=76
x^2+9x-76=0
find the roots of the equation x1 x2

x1=5.311 cm width

=-14.31 cm ignore this value
length = 5.311+9=14.311 cm

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