SOLUTION: Albert scheduled all the games for round 1 of a baseball tournament, and when he counted, he realized that if each team is going to play each other team, there would be exactly 91

Question 989528: Albert scheduled all the games for round 1 of a baseball tournament, and when he counted, he realized that if each team is going to play each other team, there would be exactly 91 games in all. How many teams are in the league?
Answer by MathTherapy(10553) (Show Source): You can put this solution on YOUR website!

Albert scheduled all the games for round 1 of a baseball tournament, and when he counted, he realized that if each team is going to play each other team, there would be exactly 91 games in all. How many teams are in the league?

Teams in league:  

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