X+Y=960,1.3X+1.25Y=1228,求XY
X+Y=960,1.3X+1.25Y=1228,求XY
数学人气:392 ℃时间:2020-02-04 08:47:21
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解 x+y=960 1.3x+1.25y=1228,解得x=560,y=400 所以xy=560*400=224000 亲,您的采纳是我的动力,
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