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The scale of a square map indicates that each inch on the map corresponds to 5 miles. Write an expression that describes the area of land shown on the map. If the map is 8 inches on one side, what is the area of land shown on the map.



Answer :

If x is the number of inches then the area is A = (5x)^2
So if x is 8 the area is (5*8)^2 = 1600 square miles

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