Suppose you work for a large coffee distributor that has a secret coffee blend it sells to local stores. You mix the Costa Rican blend with the Arabian Mocha blend, but always in the same proportion. Yesterday, you mixed 130 pounds of the Costa Rican blend with 104 pounds of the Arabian Mocha blend. Today, there is 100 pounds of the Costa Rican coffee left in stock. How many pounds of the Arabian Mocha coffee should you mix with it to get your secret blend?

Answer: pounds