6. (15 points) Metal bar costs $3 per meter and wooden bar costs $2 per meter. If we have $6000 to
purchase both type of bars, what is the maximum area we can enclose at this cost?
![6 15 points Metal bar costs 3 per meter and wooden bar costs 2 per meter If we have 6000 to purchase both type of bars what is the maximum area we can enclose a class=](https://us-static.z-dn.net/files/dd4/b40d11e7ef68349654418e4021de0934.png)