Answer:
x + y = 12
Step-by-step explanation:
sum means addition so if the question is right
then addition of x and y is 12
Total number of ways to make a pair:
The first player can be any one of 7 . For each of those . . .
The opponent can be any one of the remaining 6 .
Total ways to make a pair = 7 x 6 = 42 ways .
BUT ... every pair can be made in two ways ... A vs B or B vs A .
So 42 'ways' make only (42/2) = 21 different pairs.
If every pair plays 2 matches, then (21 x 2) = <em><u>42 total matches</u></em> will be played.
Now, is that an elegant solution or what !
A is correct,,,,,,,,,,,,,,
Answer:
It is in deficit.
Step-by-step explanation:
I got it right on the test
