Question 816093
x = width 
3x = length {the length is 3 times the width}


Area of a rectangle = width x length


x(3x) = 75 {substituted width, length, and area into area formula}
3x² = 75 {multiplied}
x² = 25 {divided each side by 3}
x = 5 {took square root of each side}
3x = 15 {substituted 5, in for x, into 3x}


width = 5 inches
length = 15 inches
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