Final answer:
A high school football team played 9 games and won as many as it lost. The team lost 4 games.
Step-by-step explanation:
In order to determine how many games the team lost, we need to know how many games it won. Since it won as many games as it lost, we can divide the total number of games by 2 to find the number of games won and lost. If the team played 9 games, it won and lost 4.5 games each. However, since we cannot have half a win or loss, we need to round down to the nearest whole number. Therefore, the team lost 4 games.