SOLUTION: the length of a rectangle is 4in longer than its with.if the perimeter is 28in find its area

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Question 288163: the length of a rectangle is 4in longer than its with.if the perimeter is 28in find its area
Answer by Deina(147) About Me  (Show Source):
You can put this solution on YOUR website!
P = 2L + 2W = 28
L = W + 4
+2%28W+%2B+4%29+%2B+2W+=+P++
+2W+%2B+8+%2B+2W+=+P++
+4W+%2B+8+=+28++
+4W+=+20+
+W+=+5+ and +L+=+cross%285+%2B+4%29+=+9+
5 * 9 = 45 sq inches and bob's your uncle!