Martin is 6 years younger than his sister. The sum of their ages is no more than 22 years.
Enter an inequality that can be used to represent this situation in the box, where x represents Martin's sister's age.
Let x represent Martin's sister's age.
Martin's age can be represented as x - 6.
The sum of their ages is no more than 22 years.
Therefore, the inequality that can be used to represent this situation is:
(x - 6) + x ≤ 22