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The length of a rectangle is twice the width. Increasing the length of the rectangle by 3 inches increases the area by 15 square inches. Determine both areas.
Analysis: This problem uses the area of a rectangle formula as a . Two tables, one for each rectangle are required resulting in a three dimensional table, The difference in the areas of the rectabgle is a plane equation: area rectangle 2 - area rectangle 1 = 15. Click to see the area table, the program, or the results.