3 years ago

Rectangle poster is 3 times as long as wide perimeter is 24 in

1 answer:

3 0

w= width

l = 3w

P = 2(l+w)

substitute

24 = 2(3w+w)

24 = 2(4w)

24 =8w

3 =w

The width is 3 inches

the length is 9 inches

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