SOLUTION: The width of a rectangle is 3in shorter than the length. The perimeter is 42in. Find the measurement of each side.

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Question 937337: The width of a rectangle is 3in shorter than the length. The perimeter is 42in. Find the measurement of each side.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

     .



 2L + 2w = 42in

L + w = 21in

L + (L-3in) = 21in

2L = 24in

L = 12in  and w = 9in 12-3

and...checking

L + w = 21in