Asked by Elizabeth

I don't understand this quadratic equation: The ratio of the measures of the length and width of a rectangle is 5:7. the area of the rectangle is 1,715 square feet. Find the dimensions of the rectangle.
Answered by Damon
length = 7 x
width = 5 x

7x * 5 x = 1715
35 x^2 = 1715
x^2 = 49
x = 7

7 x = 49
5 x = 35
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