15-10 (Algo) A small manufacturing facility is being planned that will feed parts to three heavy manufacturing facilities. The locations of the currer plants with their coordinates and volume requirements are given in the following table: PLANT LOCATION Peoria Decatur Joliet COORDINATES (x, y) 306, 301 379, 467 479, 188 VOLUME (PARTS PER YEAR) 4,150 6,150 3,150 Use the centroid method to determine the best location for this new facility. (Round your answers to 1 decimal place.) Cx Cy