4x+ 1.2y+ 1.6(44-x-y)= 1 16

6x+y= 1 14

Profit 0.6x-0.2y+ 17.6

Maximize x and minimize y.

The maximum profit is 29.

15s advertisement x another y

x & gt=2，y & gt=2

15x+30y & lt； = 120

four fundamental arithmetic operations

x=2 y=2，x=3 y=2，x=4 y=2，x=2 y=3

X=4 y=2, and the maximum income is 4.4.