已知实数x、y满足2x−y≤0x+y−5≥0y−4≤0
已知实数x,y满足x−y+5≥0x≤3x+y≥0
已知实数x,y满足2x+y−2≥0x−2y+4≥03x−y−3≤0则x
已知实数x、y满足2x−y≤0x+y−5≥0y−4≤0
已知实数x,y满足2x+y−2≥0x−2y+4≥03x−y−3≤0
若实数x,y满足x≥1x+y≤4x−2y+c≤0
(2012•浙江模拟)已知实数x,y满足约束条件2x−y≤0x−3y+5≥0y≥1
已知实数x,y满足条件2x+y≥3x+y−3≤0x≥0y≥0
已知实数x、y满足y≤2xy≥−2x4x−y−4≤0
(2013•烟台一模)已知实数x,y满足不等式组2x−y≥0x+2y≥03x+y−5≤0,则2x+y的最大值是( )
已知实数x,y满足条件x≥0,y≥x,3x+4y≤12,则(x+2y+3)/(x +1)的最大值是
(2012•安徽模拟)已知实数x,y满足x−2y+2≥0y≥|x|
若实数x,y满足x−y+1≥0x+y≥0x≤0