"Protecting the environment is everyone's responsibility", in order to better manage the environment and protect the Grand Canal, Suqian Wastewater Treatment Plant decided to buy A, B two types of sewage treatment equipment
| Solution: (1) --------------------------------------------3 points -------------------------------------------6 points (2) ) According to the question, the set of inequalities is The solution is ----------------------------------------------------------------------------------------9 points All the purchase options are listed below: | A | 1 | 2 | 3 | | B | 11 | | 10 | 9 | < /table> From can be seen, when when, W has the minimum value, that is, 1.02 million yuan.
| (1) According to the required funds *** for W million yuan = purchase of A-type equipment x units of funds + purchase of B-type equipment 10-x units of funds, the relationship; according to the total amount of sewage treatment per month for y = monthly A-type equipment to deal with the volume of sewage + the monthly volume of sewage treatment of the B-type equipment to list the relationship< /p> (2) according to the purchase of equipment not more than 1,060,000 yuan of funds, the monthly sewage treatment volume is not less than 2040 tons, column inequality group solution discussion |
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