SOLUTION: A rectangular painting measures 13 inches by 20 inches and contains a frame of uniform width sound the four edges. The perimeter of the recrangle formed by the painting and its fra

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Question 989303: A rectangular painting measures 13 inches by 20 inches and contains a frame of uniform width sound the four edges. The perimeter of the recrangle formed by the painting and its frame is 98 inches. Determine the width of the frame.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
w, width of the frame.
system%282%2A13%2B2%2A20=p%2C2%2813%2B2w%29%2B2%2820%2B2w%29=98%29
You only need the second of these equations.

13%2B2w%2B20%2B2w=49
4w%2B33=49
4w=16
w=4