You are volunteering to help with the soccer team's Valentine's Day fundraiser. Each 16-ounce bag of nuts the team sold must include at least 60% chocolate-covered nuts inside. However, instead of receiving a shipment of separated plain nuts and chocolate nuts, they delivered two large containers of mixed nuts. The first says it is 50/50 plain and chocolate covered. The second contains 80% chocolate-covered nuts. The team is dismayed, but you come up with a solution. You suggest combining ? ounces* of the 50/50 nuts with ? ounces* of the 80% chocolate-covered nuts, to create the 60% mixture required for each bag. Then Bob, another student on the team says, "Wait, we promised at least 60%. So if we just do half and half, won't we be giving them at least 60%?" Is Bob correct?