Final answer:
Given the ratio of players wearing to not wearing headbands (4:2) and knowing that 18 players did not wear headbands, we used a proportion to find that there were a total of 54 players in the soccer league.
Step-by-step explanation:
To determine the total number of players in the soccer league, we can use the information given:
Four out of six soccer players wore headbands. This ratio signifies that for every six players, four wore headbands and two did not. If there were 18 players who did not wear headbands, we can set up a proportion to find the total number of players by doing the following:
Therefore, there were 54 players in total in the soccer league.