A pet store owner wants to mix together an high quality dry cat food costing 1.10 per pound with a lower quality dry cat food costing 0.85 per pound. How many pounds of each should be mixed together in order to produce 40 pounds of a mixture costing 0.95 per pound?
I think I know how to start part of the problem but I am stuck on the second part of the problem. This is what I have gotten so far:
Is this the right approach to this problem?