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14. theodore purchased a vintage painting from an art dealer worth $480…

Question

  1. theodore purchased a vintage painting from an art dealer worth $480. the dealer noted that the value of the painting will increase by 12 percent per year. what is the growth factor of the painting?

0.12
480
1.12
12

Explanation:

Response

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"concepts_used": [],
"new_concepts": [
"Exponential Growth",
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"current_concepts": [
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"Percentage Conversion"
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</pre_analysis>

<reasoning>

Identify the given values

We are given:

  • Initial value of the painting: \(P = \$480\)
  • Annual growth rate: \(r = 12\%\)

Define the growth factor

For exponential growth, the growth factor \(b\) is calculated using the formula:
\[b = 1 + r\]
where \(r\) is the growth rate expressed as a decimal.

Convert percentage to decimal

Convert the percentage rate to a decimal:
\[r = 12\% = 0.12\]

Calculate the growth factor

Substitute \(r = 0.12\) into the growth factor formula:
\[b = 1 + 0.12 = 1.12\]
</reasoning>

<answer>
<mcq-option>0.12</mcq-option>
<mcq-option>480</mcq-option>
<mcq-correct>1.12</mcq-correct>
<mcq-option>12</mcq-option>
</answer>

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

Answer:

<pre_analysis>
{
"quality": "clear",
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"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"tutor"
],
"needs_drawing": false,
"concepts_used": [],
"new_concepts": [
"Exponential Growth",
"Growth Factor"
],
"current_concepts": [
"Exponential Growth",
"Growth Factor",
"Percentage Conversion"
]
}
</pre_analysis>

<reasoning>

Identify the given values

We are given:

  • Initial value of the painting: \(P = \$480\)
  • Annual growth rate: \(r = 12\%\)

Define the growth factor

For exponential growth, the growth factor \(b\) is calculated using the formula:
\[b = 1 + r\]
where \(r\) is the growth rate expressed as a decimal.

Convert percentage to decimal

Convert the percentage rate to a decimal:
\[r = 12\% = 0.12\]

Calculate the growth factor

Substitute \(r = 0.12\) into the growth factor formula:
\[b = 1 + 0.12 = 1.12\]
</reasoning>

<answer>
<mcq-option>0.12</mcq-option>
<mcq-option>480</mcq-option>
<mcq-correct>1.12</mcq-correct>
<mcq-option>12</mcq-option>
</answer>

<post_analysis>
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"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Exponential Growth"
]
}
</post_analysis>