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A person must be at least 18 years old to vote. The inequality [tex]a \geq 18[/tex] represents the possible ages [tex]a[/tex] in years at which a person can vote.

Determine whether [tex]a=18[/tex], [tex]a=17 \frac{1}{2}[/tex], and [tex]a=97.5[/tex] are solutions of the inequality, and complete the description of what the solutions mean.

1. [tex]a=18[/tex] and [tex]a=97.5[/tex] are solutions.

2. The solution [tex]a=18[/tex] means that an 18-year-old can vote.

3. The solution [tex]a=97.5[/tex] means that a 97.5-year-old can vote.

Answer :

To determine whether each given age is a solution of the inequality [tex]\( a \geq 18 \)[/tex], we will check each age one by one and explain what it means.

1. Checking [tex]\( a = 18 \)[/tex]:

- We compare 18 to the minimum voting age requirement, which is 18.
- Since 18 is equal to 18, it satisfies the inequality [tex]\( a \geq 18 \)[/tex].
- Therefore, [tex]\( a = 18 \)[/tex] is a solution. This means that an 18-year-old can vote.

2. Checking [tex]\( a = 17.5 \)[/tex]:

- We compare 17.5 to the minimum voting age requirement.
- Since 17.5 is less than 18, it does not satisfy the inequality [tex]\( a \geq 18 \)[/tex].
- Therefore, [tex]\( a = 17.5 \)[/tex] is not a solution.

3. Checking [tex]\( a = 97.5 \)[/tex]:

- We compare 97.5 to the minimum voting age requirement.
- Since 97.5 is greater than 18, it satisfies the inequality [tex]\( a \geq 18 \)[/tex].
- Therefore, [tex]\( a = 97.5 \)[/tex] is a solution. This means that a 97.5-year-old can vote.

In summary:

- [tex]\( a = 18 \)[/tex] and [tex]\( a = 97.5 \)[/tex] are solutions to the inequality.
- The solution [tex]\( a = 18 \)[/tex] means that an 18-year-old can vote.
- The solution [tex]\( a = 97.5 \)[/tex] means that a 97.5-year-old can vote.

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