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lincoln is saving $360 to buy a new bike. he already has $85 and can ea…

Question

lincoln is saving $360 to buy a new bike. he already has $85 and can earn $12 per hour at work. which of the following equations describes the number of hours, \\(h\\), for which lincoln must work to earn enough money to buy the new bike?

\\(360 - 12 = 85h\\)
\\(360h = 12 + 85\\)
\\(360 - 85 = 12h\\)
\\(85 = 360 + 12h\\)

Explanation:

Response

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<reasoning>

Identify the given values and variables

\[

$$\begin{aligned} &\text{Total savings goal} = 360\\ &\text{Initial savings} = 85\\ &\text{Hourly wage} = 12\\ &\text{Hours worked} = h \end{aligned}$$

\]

Set up the total savings equation

\[
85 + 12h = 360
\]

Rearrange to match the options

\[
360 - 85 = 12h
\]
</reasoning>

<answer>
<mcq-option>(A) \(360 - 12 = 85h\)</mcq-option>
<mcq-option>(B) \(360h = 12 + 85\)</mcq-option>
<mcq-correct>(C) \(360 - 85 = 12h\)</mcq-correct>
<mcq-option>(D) \(85 = 360 + 12h\)</mcq-option>
</answer>

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

Answer:

<pre_analysis>
{
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"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Linear Equations",
"Real-world Applications"
],
"new_concepts": [],
"current_concepts": [
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"Real-world Applications"
]
}
</pre_analysis>

<reasoning>

Identify the given values and variables

\[

$$\begin{aligned} &\text{Total savings goal} = 360\\ &\text{Initial savings} = 85\\ &\text{Hourly wage} = 12\\ &\text{Hours worked} = h \end{aligned}$$

\]

Set up the total savings equation

\[
85 + 12h = 360
\]

Rearrange to match the options

\[
360 - 85 = 12h
\]
</reasoning>

<answer>
<mcq-option>(A) \(360 - 12 = 85h\)</mcq-option>
<mcq-option>(B) \(360h = 12 + 85\)</mcq-option>
<mcq-correct>(C) \(360 - 85 = 12h\)</mcq-correct>
<mcq-option>(D) \(85 = 360 + 12h\)</mcq-option>
</answer>

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