Question

the table shows the polar bear population in the north atlantics baffin bay in 1997 and 2004.

between 1997 and 2004, baffin bays polar bear population dropdown

528 is about dropdown percent of 2074.

Explanation:

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"concepts_used": [
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"concept_mastery_cards": {
"percent_of_change": "Mastered"
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</pre_analysis>

<reasoning>

Identify the direction of change

Using the Percent of Change knowledge point
\[

$$\begin{aligned} &\text{Original Population (1997)} = 2074\\ &\text{New Population (2004)} = 1546\\ &1546 < 2074 \implies \text{decreased} \end{aligned}$$

\]

Calculate the percentage of change

Using the Percent of Change knowledge point
\[

$$\begin{aligned} &\text{Ratio} = \frac{528}{2074} \approx 0.2546\\ &\text{Percentage} \approx 25.46\% \approx 25\% \end{aligned}$$

\]
</reasoning>

<answer>
The table shows the polar bear population in the North Atlantic's Baffin Bay in 1997 and 2004.

Between 1997 and 2004, Baffin Bay's polar bear population <blank>decreased</blank>.

528 is about <blank>25</blank> percent of 2074.
</answer>

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"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Algebra",
"Percent of Change"
]
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</post_analysis>

Answer:

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"concept_mastery_cards": {
"percent_of_change": "Mastered"
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</pre_analysis>

<reasoning>

Identify the direction of change

Using the Percent of Change knowledge point
\[

$$\begin{aligned} &\text{Original Population (1997)} = 2074\\ &\text{New Population (2004)} = 1546\\ &1546 < 2074 \implies \text{decreased} \end{aligned}$$

\]

Calculate the percentage of change

Using the Percent of Change knowledge point
\[

$$\begin{aligned} &\text{Ratio} = \frac{528}{2074} \approx 0.2546\\ &\text{Percentage} \approx 25.46\% \approx 25\% \end{aligned}$$

\]
</reasoning>

<answer>
The table shows the polar bear population in the North Atlantic's Baffin Bay in 1997 and 2004.

Between 1997 and 2004, Baffin Bay's polar bear population <blank>decreased</blank>.

528 is about <blank>25</blank> percent of 2074.
</answer>

<post_analysis>
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"question_type": "Fill-in-the-blank",
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"Percent of Change"
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