There are 14 teams in a basketball league. Each team plays every other team twice during the season. a) Suppose that you want

Question

There are 14 teams in a basketball league.
Each team plays every other team twice
during the season.
a) Suppose that you want to determine
how many games, in total, are played.
Suggest a simpler problem that you
could solve first.
b) How many games, in total, are played
during the season?​

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Ben Gia 4 years 2021-08-14T09:04:53+00:00 1 Answers 63 views 0

Answers ( )

  1. Sigrid
    0
    2021-08-14T09:06:39+00:00
    Reply

    Answer:

    Step-by-step explanation:

    Given that :

    Number of teams = 14

    Each team plays every other team twice ;

    Using the combination formula :

    nCr = n! ÷ (n-r)! r!

    14C2 = 14! ÷ (14 – 2)! 2!

    14C2 = 14! ÷ (12)! 2!

    14C2 = (14 * 13) ÷ 2 * 1

    14C2 = 182 / 2

    14C2 = 91

    Hence, since they are going to be playing each other twice :

    2(14C2)

    2 * 91 = 182games

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )