Hope this helps :) (the first circle is a fraction of thirds and the second circle is a fraction of sixths)
Answer:
Sample because it's only the first ten games of the season not of all the games in the season
Step-by-step explanation:
You can see that each term is twice the previous one, with inverted sign.
You double a number by multiplying it by two, and you change its sign by multiplying it by -1.
So, you multiply each term by 2 and by -1, which results in a multiplication by -2.
Since we start with 3, the terms are
and so on. So, the general term is
20 is the lowest of the upper 3 numbers, so the missing number must be 19 when averaged with 20. That is, the missing number must be ...
2*19 -20 = 18
He is not correct because 3.5 is actually 3 and 1/2
not 3/5
hope that helps @:)