Solution Check,

http://imgur.com/bGQXqmO

Does this solution look correct given that the number of cars has to be a non-negative integer number?

http://i.imgur.com/Q6w9Pq3.png

Question

Solution Check,

http://imgur.com/bGQXqmO 

Does this solution look correct given that the number of cars has to be a non-negative integer number?

http://i.imgur.com/Q6w9Pq3.png

australopithecus · Answer

Or do I have to include negative values of s and t?

anonymous · Answer

Well it doesn't look like $x_4=s$ and $x_7=t$ can be negative, so I think your solution is fine as it is.

australopithecus · Answer

Yeah that is what I was thinking thank you.

anonymous · Answer

np

anonymous · Answer

btw is that an 80 on the bottom right of your rref matrix? I think it's supposed to be a 0.