the length of a rectangular poster is 10 inches longer than the width.

the length of a rectangular poster is 10 inches longer than the width. if the perimeter of the poster is 124 inches, what is the width?
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1 Answer

Let l be the length and w be the width.

l = w + 10

P = 2(l + w)

124 = 2(w + 10 + w)

62 = 2w + 10

52 = 2w

w = 26 in

l = 26 + 10 = 36 in

by Level 10 User (55.7k points)

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