How can constraints be used to model a real world situation

Question

skullpatrol · Answer

Any ideas?

anonymous · Answer

no i really need help

anonymous · Answer

anything to do with buying. selling or manufacturing involves constraints.  there isn't an infinite amount of anything!  except numbers

anonymous · Answer

can you explain in an algebra sense

skullpatrol · Answer

Do know what a "constraint" means?

anonymous · Answer

no

anonymous · Answer

I also need help with this

skullpatrol · Answer

It is a "restriction" that a value of a variable cannot have such as 0 in the expression 1/x.

anonymous · Answer

thank you!

skullpatrol · Answer

thanks for asking :)

anonymous · Answer

What type of solutions do the methods for solving systems of equations find?

anonymous · Answer

@skullpatrol do you have an example please

anonymous · Answer

@skullpatrol sorry i'm having trouble finding out how to use it

skullpatrol · Answer

Division by 0 is undefined.

skullpatrol · Answer

In a real world situation, 

if I divide something into 2 equal pieces means you get 1/2 and I get 1/2.

If I divide something by 1 then that means I have not changed it at all.

If I "divide" something by 0 it has no meaning.

Therefore, when using division we must restrict, or put a constraint on 

division by 0.