Tournament 61544

In an amateur chess tournament, everyone plays with everyone. There are a total of 171 chess games on the program. How many players take part in the match?

Correct answer:

n =  19

Step-by-step explanation:

(2n)=2n (n1)=171  n(n1)=2171  n (n1)=2 171 n2n342=0  a=1;b=1;c=342 D=b24ac=1241(342)=1369 D>0  n1,2=2ab±D=21±1369 n1,2=21±37 n1,2=0.5±18.5 n1=19 n2=18   Factored form of the equation:  (n19)(n+18)=0  n>0 n=n1=19

Our quadratic equation calculator calculates it.




Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Are you looking for help with calculating roots of a quadratic equation?
Would you like to compute the count of combinations?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: