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For how many ordered pairs (x, y) of positive integers does 5x+7y=2018
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1c-2 m405 what values are needed to make each expression a perfect square trinomial? 32 + 2x+ 2-20x + 22+5x+
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7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?
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For how many ordered pairs (x, y) of positive integers does 5x+7y=2018...
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