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the length of a rectangle is 3 times the width. the perimeter is 96 cm. find the width and the length

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the length of rectangle is 3 times the width. the perimeter is 96cm find the width and length.

asked Nov 20, 2013 in ALGEBRA 1 by payton Apprentice

1 Answer

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Width of rectangle say = x

length of rectangle is be 3x

Perimeter of rectangle = 2(l+b)

96 = 2(3x+x)

96 = 2(4x)

96 = 8x

Divide by 8 to each side.

96/8 = 8x/8

12 = x

width = 12cm

length = 3*12

= 36cm

answered Nov 20, 2013 by william Mentor

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