CREATE TABLE table_73133 ("Rank by average" FLOAT, "Place" FLOAT, "Couple" TEXT, "Number of Dances" FLOAT, "Total Points" TEXT, "Average" TEXT)

If the total points is 50.5, what is the total number of dances?
SELECT COUNT("Number of Dances") FROM table_73133 WHERE "Total Points" = '50.5'
SELECT COUNT("Number of Dances") FROM "table_73133" WHERE "Total Points" = '50.5'