SOLUTION: Al paints with watercolors on a sheet of paper 28 inches wide by 14 inches high. He then places this sheet on a mat so that a uniformly wide strip of the mat shows all around the p
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Question 211027: Al paints with watercolors on a sheet of paper 28 inches wide by 14 inches high. He then places this sheet on a mat so that a uniformly wide strip of the mat shows all around the picture. The perimeter of the mat is 124 inches. How wide is the strip of the mat showing around the picture? Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! 2(28+2X)+2(14+2X)=124
56+4X+28+4X=124
8X=124-56-28
8X=40
X=40/8
X=5 IN. FOR THE WIDTH OF THE MAT.
PROOF:
2(28+10)+2(14+10)=124
2*38+2*24=124
76+48=124
124=124
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