At a college party two students knew one other student before the party, and five students knew two other students before the party. The rest of the students knew three other students before the party. A total of 15 pairs of students knew each other before the party. How many students attended the party?
At a college party two students knew one other student before the party, and five students knew two other students before the party. The rest of the students knew three other students before the party. A total of 15 pairs of students knew each other before the party. How many students attended the party?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter12: Angle Relationships And Transformations
Section: Chapter Questions
Problem 3PTTS
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