John is mixing nuts and raisins to sell at the school store. Nuts are sold in 4 pound packages and raisins are sold in 1 pound p
ackages. He needs to buy a total of 70 pounds of nuts. He also decides to but three times as many nuts as raisins. How many packages of each does he buy? Set up an equation and solve. Does this scenario need a system of equations? Why or why not?
