The answer is every long.
Step-by-step explanation:
as the figure shows
Answer: 13 players.
Step-by-step explanation:
1. Let's call:
: Price of the shirt (
)
: Price of socks 
: number of players.
2. You know that the budget is $300 and you have the following formula given in the problem:

3. Substitute values and solve for
.Then, you obtain the following result:

4. The answer is: 13 players.
Answer:
x = 1/5
y = 6
Step-by-step explanation:
System:
{5x + y = 7
{20x + 2 = y
First equation:
5x + y = 7 -> y = -5x + 7
Plug into second equation:
20x + 2 = -5x + 7
Subtract 2 from both sides:
20x = -5x + 5
Add 5x to both sides:
25x = 5
Divde both sides by 25:
x = 5/25 -> 1/5
~~~~~~~~~~~~~~~~~~~~~~~~~~~`
Come back to the first equation:
5x + y = 7
Plus in our x:
5(1/5) + y = 7
Multiply:
1 + y = 7
Subtract 1 from both sides:
y = 6
Hope this helps, have a nice day! :D