Write a system of equations to describe the situation below, solve using any method, and fill in the blanks. Joseph works in the shipping department of a toy factory that makes radio-controlled helicopters. Small helicopters weigh 2 pounds each, and are shipped in a container that weighs 16 pounds. Large ones, on the other hand, weigh 5 pounds apiece, and are shipped in a container that weighs 13 pounds. If these boxes can hold a certain number of helicopters each, all of the packed containers will have the same shipping weight. How many helicopters would fit in either container? What would the total weight be? If either container holds helicopters, it will weigh a total of pounds once it is packed for shipping. S