The length of a rectangle is three times its width. If the area of the rectangle is 75 yd2 , find its perimeter.

40

Step-by-step explanation:

Let x = width, then 3x = length, Area = l x w so,

(3x)(x) = 75

3x2 = 75

x = 5 = width, length = 15

Perimeter = 2l +2w = 10 + 30 = 40

step-by-step explanation: you take each of the numbers and divide by the amount then you take the range

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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