Question: Find 1) decision variable 2) objective function 3)constraints - The Energetic Company needs to make plans for the energy systems for a new building. The

Find

1) decision variable

2) objective function

3)constraints

- The Energetic Company needs to make plans for the energy systems for a new building. The energy needs in the building fall into two categories: (1) heating water and (2) heating space in the building. The minimum daily requirements for these two categories (all measured in the same units) are 10 units and 30 units respectively. The three possible sources of energy to meet these needs are electricity, natural gas, and a solar heating unit that can be installed on the roof. The size of the roof limits the largest possible solar heater to 30 units, but there is no limit to the electricity and natural gas available. Both other energy needs can be met by any source or combination of sources. The unit costs are shown in the following table: Water Heating Space Heating Electricity 905 Natural Gas 605 505 Solar Heater 305 40S Formulate LP model for the problem 805

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