设不等式组{x>=0,x+3y>=4,3x+y
设不等式组{x>=0,x+3y>=4,3x+y
设不等式组x+y-2>=0,x-3y+6>=0,x-y
设实数x,y满足不等式组{x+2y-5>0 2x+y-7>0 x>=0 y>=0} ,且x,y为整数,则3x+4y的最小
设实数X ,Y 是不等式组 X+2Y-5>0,2X+Y-7>0,X>=0,Y>=0 ,若 X、Y 为整数,则3X+4Y的
设实数X ,Y 是不等式组 X+2Y-5>=0,2X+Y-7>=0,X>=0,Y>=0 ,若 X、Y 为整数,则3X+4
设x,y满足约束条件x>=0 y>=x 4x+3y
不等式:设实数x,y满足3
设实数X,Y满足2X+Y-2>=0,X-2Y+4>=0,3X-Y
设Z=x+y,其中实数x,y满足不等式x+2y>=0,x-y
设实数x、y满足不等式组x+2y-5>02x+y-7>0x≥0,y≥0,若x、y为整数,则3x+4y的最小值是( )
题:设不等式组x>,y>,y
点p(x,y)在不等式组x-y+2>=0,x+y-4