Solve the inequalities graphically: 2x +y \(\ge\) 6, 3x +4y \(\le\)12

5

(a)

Solve the inequalities graphically x+y \(\ge\) 4, 2x - y > 0

5

(a)

Solve the inequalities graphically x +y \(\le\) 6, x + y \(\ge\) 4

5

(a)

Solve the inequalities graphically 2x +y \(\ge\) 8,x + 2y \(\ge\) 10

5

(a)

Solve the inequalities graphically - 5x +4y \(\le\) 20, x \(\ge\) 1, y \(\ge\) 2

5

(a)

Solve the inequalities graphically 2x +y \(\ge\) 4, x + y \(\le\) 3, 2x -3y \(\le\) 6

5

(a)

Solve the inequalities graphically x -2y \(\le\)3, 3x +4y \(\ge\)12, x\(\ge\)0, y\(\ge\)1

5

(a)

Solve the inequalities graphically 3x+2y\(\le\)150, x+4y\(\le\)80, x\(\le\)15, y\(\ge\)0,x\(\ge\)0

5

(a)

Solve the inequalities graphically x +2y\(\le\)10,x+y\(\ge\)1,x-y\(\le\)0,x\(\ge\)0,y\(\ge\)0

5

(a)

How many litres of water will have to be added to 1125 litres of the 45% solution of acid so that the resulting mixture will contain more than 25% but less than 30% acid content?

5

(a)