High School

Which of the following is a solution to the inequality

\[ \frac{f}{2} - 9 > 58 \]

A. [tex] f = 108 [/tex]
B. [tex] f = 106 [/tex]
C. [tex] f = 84 [/tex]
D. [tex] f = 142 [/tex]

Answer :

To solve the inequality [tex]\(\frac{f}{2} - 9 > 58\)[/tex], we need to determine which of the given values for [tex]\(f\)[/tex] satisfies this condition.

Let's analyze each value step-by-step:

1. For [tex]\(f = 108\)[/tex]:
[tex]\[
\frac{108}{2} - 9 > 58
\][/tex]
[tex]\[
54 - 9 > 58
\][/tex]
[tex]\[
45 > 58 \quad \text{(This is False)}
\][/tex]

2. For [tex]\(f = 106\)[/tex]:
[tex]\[
\frac{106}{2} - 9 > 58
\][/tex]
[tex]\[
53 - 9 > 58
\][/tex]
[tex]\[
44 > 58 \quad \text{(This is False)}
\][/tex]

3. For [tex]\(f = 84\)[/tex]:
[tex]\[
\frac{84}{2} - 9 > 58
\][/tex]
[tex]\[
42 - 9 > 58
\][/tex]
[tex]\[
33 > 58 \quad \text{(This is False)}
\][/tex]

4. For [tex]\(f = 142\)[/tex]:
[tex]\[
\frac{142}{2} - 9 > 58
\][/tex]
[tex]\[
71 - 9 > 58
\][/tex]
[tex]\[
62 > 58 \quad \text{(This is True)}
\][/tex]

Based on the evaluations, the only value of [tex]\(f\)[/tex] that makes the inequality true is [tex]\(f = 142\)[/tex].

Therefore, the solution to the inequality [tex]\(\frac{f}{2} - 9 > 58\)[/tex] is [tex]\(f = 142\)[/tex].