SOLUTION: a rectangle is 4 feet longer than its width. if the area of the rectangle is 369 sq feet what is its width in feet?
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Question 993260: a rectangle is 4 feet longer than its width. if the area of the rectangle is 369 sq feet what is its width in feet? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! a rectangle is 4 feet longer than its width. if the area of the rectangle is 369 sq feet what is its width in feet?
let x=width of rectangle
x+4=length of rectangle
length*width=area
x(x+4)=369
x^2+4x-369=0
solve for x by quadratic formula:
a=1, b=4, c=-369
ans: x=17.31
width=17.31 ft
length=21.31 ft
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