Answer:
The answer is 10.
Step-by-step explanation:
There would be 10 players, 2 for each group, and if each player played every other player twice, then that would mean that 20 matches of chess were played.
Hope this helped!! (:
164.38 = (1 x 100) + (6 x 10) + (4 x 1) + (3/10) + (8/100)
B, D, E are appropriate choices.
_____
A ray can be named by its (one) end-point and any other point on the ray. Since there are an infinite number of points on the ray, it can be named an infinite number of ways.
Answer: 4
Explanation:
You can write an algebraic expression to represent the sequence with the books in this way:
- yesterday she got five books: 5
- today returned three books: - 3
- how many books did Gia have to begin: n
- At the end she has six books, which means that you can set an equality:
n + 5 - 3 = 6
Now you follow these steps to clear the unknown:
- do the operations in the left side: n + 2 = 6
- use subtraction property of equality: n = 6 - 2
- do the operations: n = 4
And that is the number of books whith which Gina started: 4
