Minimise Z=13x-15y subject to the constraints ` x+y le 7, 2x-3y+6 ge 0, x ge 0, x ge 0, and y ge 0`

Minimise z = 13x - 15y subject to the constraints : x+y le 7, 2x-3y+6 ge 0, x ge 0, y ge 0

Minimise and maximise Z=3x+9y subject to the constraints. x+3y le 60 x+y ge 10 x le y x ge 0, y ge 0

Minimise Z=3 x+2 y ,subject to the constraints: x+y ge 8 , 3 x+5 y le 15 , x ge 0, y ge 0

Maximise Z=3x+4y subject to the constraints x+y le, 4, x ge 0, y ge 0

Maximize z= 7x+11y subject to the constraints 3x+5y le 26,5x+3y le 30 , x ge 0, y ge 0

Graphically maximize Z = 3x + 9y , subject to the constraints x + 3y le 60, x + y ge 1 0, x le y, x ge 0, y ge 0

Minimise Z=3x+2y Subject to the constraints x+yge8 3x+5y le 15 x ge0, y ge0