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The perimeter of a rectangle is 24 in. and its length l is 3 times the width w. What is the length and width (l, w) of the rectangle?(9, 3)(12, 4)(3, 9)(14.4, 4.8)

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hinnocentholumede

Answer:

let length is 3x

the width be x

perimeter of rectangle is 2(l+b)

24=2(3x+x)

24=2(4x)

24=8x

divide the both side by 8

[tex] \frac{28}{8} = \frac{8x}{8} [/tex]

x=3

therefore length is 3×3=9

width is 3

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