Final answer:
Given the scenario where a soccer team starts with 17 players and loses 3 every 5 minutes, by calculating the number of 5-minute intervals before the team has fewer than 5 players, the team can keep playing for at most 20 minutes.
Step-by-step explanation:
The student's question relates to how long a soccer team can keep playing given a certain situation. The team starts with 17 players and loses 3 players every 5 minutes, with the requirement that there must be at least 5 players on each team for the game to continue.
To solve this, we can set up a sequence that represents the number of players left after every 5 minutes. Starting with 17 players, losing 3 every 5 minutes, after 'n' intervals of 5 minutes, the number of players left will be:
Remaining players
= 17 - 3n
The team can keep playing as long as there are at least 5 players, so we need to find the largest 'n' for which the remaining players are ≥5:
5 ≤ 17 - 3n
By rearranging this inequality, we can solve for 'n':
- Add 3n to both sides: 3n + 5 ≤ 17
- Subtract 5 from both sides: 3n ≤ 12
- Divide both sides by 3: n ≤ 4
Since 'n' represents the number of 5-minute intervals, the team can keep playing for 4 intervals of 5 minutes each, which is equivalent to 20 minutes. Therefore, the team can keep playing for at most 20 minutes before dropping below the required minimum number of players.