A rectangle has a width represented by x and length represented by 4x. it the area of the rectangle is 80, find the value of x

asked Oct 20, 2019 207k views

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by Sanil

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6 votes

Area = length * width = 4x * x = 4x^2.

4x^2 = 80
x^2 = 80/4 = 20

x = sqrt 20

Answer is 4.47 to nearest hundredth.

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