We will see that the number of students that play both sports is given by the inequality:
5 ≤ x ≤ 9
We do know that in the class, there are 15 students.
Such that:
If you add these numbers, you get:
9 + 11 = 20
This gives more than the number of students that we have, to get the minimum number of students that play both sports we subtract the number of students:
20 - 15 = 5
5 students play both sports, but this is the minimum number.
There is also the case where out of the 11 students that play soccer, there are 9 that play basketball (so 9 students play both sports) and 4 students don't play any sport.
So the number of students that play both sports is given by the inequality:
5 ≤ x ≤ 9
If you want to learn more about inequalities, you can read:
https://brainly.com/question/11234618
