Sovi.AI - AI Math Tutor

Scan to solve math questions

QUESTION IMAGE

theo budgets $156 for karate classes. he buys a karate uniform, called …

Question

theo budgets $156 for karate classes. he buys a karate uniform, called a dogi, for $12. if it costs $8 to attend each karate class, which inequality below represents the number of classes, c, that theo can take?

\\(17 \le c\\)
\\(18 \ge c\\)
\\(17 \ge c\\)
\\(18 \le c\\)

Explanation:

Response

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Linear Equations",
"Real-world Applications"
],
"new_concepts": [
"Linear Inequalities",
"Writing Inequalities"
],
"current_concepts": [
"Linear Equations",
"Real-world Applications",
"Linear Inequalities",
"Writing Inequalities"
]
}
</pre_analysis>

<reasoning>

Set up the inequality representing the budget constraint

\[
8c + 12 \le 156
\]

Solve the inequality for c

\[

$$\begin{aligned} 8c &\le 156 - 12 \\ 8c &\le 144 \\ c &\le 18 \end{aligned}$$

\]

Rewrite the inequality to match the options

\[
18 \ge c
\]
</reasoning>

<answer>
<mcq-option>(A) \(17 \le c\)</mcq-option>
<mcq-correct>(B) \(18 \ge c\)</mcq-correct>
<mcq-option>(C) \(17 \ge c\)</mcq-option>
<mcq-option>(D) \(18 \le c\)</mcq-option>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Linear Inequalities"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Linear Equations",
"Real-world Applications"
],
"new_concepts": [
"Linear Inequalities",
"Writing Inequalities"
],
"current_concepts": [
"Linear Equations",
"Real-world Applications",
"Linear Inequalities",
"Writing Inequalities"
]
}
</pre_analysis>

<reasoning>

Set up the inequality representing the budget constraint

\[
8c + 12 \le 156
\]

Solve the inequality for c

\[

$$\begin{aligned} 8c &\le 156 - 12 \\ 8c &\le 144 \\ c &\le 18 \end{aligned}$$

\]

Rewrite the inequality to match the options

\[
18 \ge c
\]
</reasoning>

<answer>
<mcq-option>(A) \(17 \le c\)</mcq-option>
<mcq-correct>(B) \(18 \ge c\)</mcq-correct>
<mcq-option>(C) \(17 \ge c\)</mcq-option>
<mcq-option>(D) \(18 \le c\)</mcq-option>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Linear Inequalities"
]
}
</post_analysis>