-Six points.
(2) According to the meaning of the problem, the inequality group can be listed as follows.
The solution is.
All procurement schemes are as follows:
A
1
2
three
B
1 1
10
nine
Therefore, when w has a minimum value, that is, 1.02 million yuan.
(1) List the relationship according to the requirement that the capital * * * is W ten thousand yuan = the capital for purchasing X A-type equipment+the capital for purchasing 10-x B-type equipment; According to the relationship that the total amount of sewage treated every month y = the amount of sewage treated by class equipment+the amount of sewage treated by class B equipment,
(2) According to the fact that the fund for purchasing equipment does not exceed 6.5438+0.06 million yuan, and the monthly sewage treatment capacity is not less than 2,040 tons, the inequality group is solved and discussed.