the perimeter of a rectangle is 72 inches.its width is 9 inches what is the lenght

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1 Answer

p = 2l + 2w  put in the known values

72 = 2l + 2*9

72 = 2l + 18

72 - 18 = 2l  subtract 18 from both sides

54 = 2l

27 = l  divide by 2 on both sides

=================================

CHECK:

72 = 2*27 + 2*9

72 = 54 + 18

72 = 72 check

by Level 10 User (55.7k points)

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