determine the point on the graph of the equation 2x+5y=20 whose x coordinate is 5/2 times it's ordinate
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Answer: As the x-coordinate of the point is 5/2 times its ordinate, therefore, x = 5/2 y. Now putting x = 5/2 y in 2x + 5y = 20, we get, y = 2. ... Thus, the required point is (5, 2).
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