SOLUTION: joe wants to paint a rectangular region of a wall with one layer of paint. he has 40 ft of tape to tape around the border of the region he paints. He is considering three regions w

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Question 1086902: joe wants to paint a rectangular region of a wall with one layer of paint. he has 40 ft of tape to tape around the border of the region he paints. He is considering three regions with widths of 10 ft, 11 ft, and 12 ft. Find the length and area for each region
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ be the length in each case
Let +A+ = the area in each case
+2x+%2B+20+=+40+
+2x+=+20+
+x+=+10+
+A+=+10%2A10+
+A+=+100+
--------------------
+2x+%2B+22+=+40+
+2x+=+18+
+x+=+9+
+A+=+9%2A11+
+A+=+99+
--------------------
+2x+%2B+24+=+40+
+2x+=+16+
+x+=+8+
+A+=+8%2A12+
+A+=+96+