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Sagot :
Let's analyze the given data step-by-step:
Step 1: Review the data presented in the table.
The table shows the industrial and agricultural output (in millions of tons) for three products - coal, grain, and iron - in the years 1913, 1921, and 1928.
[tex]\[ \begin{tabular}{|c|c|c|c|} \hline & 1913 & 1921 & 1928 \\ \hline Coal & 29.0 & 9.0 & 35.0 \\ \hline Grain & 80.0 & 37.6 & 73.3 \\ \hline Iron & 8.5 & 0.3 & 7.3 \\ \hline \end{tabular} \][/tex]
Step 2: Determine which product’s output increased by about 400% between 1921 and 1928.
To find this, we need to calculate the percentage increase for each product from 1921 to 1928 using the formula:
[tex]\[ \text{Percentage Increase} = \left( \frac{\text{Final Value} - \text{Initial Value}}{\text{Initial Value}} \right) \times 100 \][/tex]
Let's calculate this for each product:
- Coal:
[tex]\[ \left( \frac{35.0 - 9.0}{9.0} \right) \times 100 = \left( \frac{26.0}{9.0} \right) \times 100 \approx 288.89\% \][/tex]
- Grain:
[tex]\[ \left( \frac{73.3 - 37.6}{37.6} \right) \times 100 = \left( \frac{35.7}{37.6} \right) \times 100 \approx 94.95\% \][/tex]
- Iron:
[tex]\[ \left( \frac{7.3 - 0.3}{0.3} \right) \times 100 = \left( \frac{7.0}{0.3} \right) \times 100 \approx 2333.33\% \][/tex]
From these calculations, we observe that the output for iron increased about 400% (it actually increased by much more, approximately 2333.33%).
Step 3: Determine what happened to the output for all three products between 1913 and 1921.
To find this, let's compare the values for each product between those years:
- Coal: 29.0 (1913) to 9.0 (1921) — decreased
- Grain: 80.0 (1913) to 37.6 (1921) — decreased
- Iron: 8.5 (1913) to 0.3 (1921) — decreased
From this, we can see that the output for all three products decreased between 1913 and 1921.
Conclusion:
- The chart shows that output for iron increased about 400% (actually 2333.33%) between 1921 and 1928.
- The chart shows that output for all three products (coal, grain, and iron) decreased between 1913 and 1921.
Step 1: Review the data presented in the table.
The table shows the industrial and agricultural output (in millions of tons) for three products - coal, grain, and iron - in the years 1913, 1921, and 1928.
[tex]\[ \begin{tabular}{|c|c|c|c|} \hline & 1913 & 1921 & 1928 \\ \hline Coal & 29.0 & 9.0 & 35.0 \\ \hline Grain & 80.0 & 37.6 & 73.3 \\ \hline Iron & 8.5 & 0.3 & 7.3 \\ \hline \end{tabular} \][/tex]
Step 2: Determine which product’s output increased by about 400% between 1921 and 1928.
To find this, we need to calculate the percentage increase for each product from 1921 to 1928 using the formula:
[tex]\[ \text{Percentage Increase} = \left( \frac{\text{Final Value} - \text{Initial Value}}{\text{Initial Value}} \right) \times 100 \][/tex]
Let's calculate this for each product:
- Coal:
[tex]\[ \left( \frac{35.0 - 9.0}{9.0} \right) \times 100 = \left( \frac{26.0}{9.0} \right) \times 100 \approx 288.89\% \][/tex]
- Grain:
[tex]\[ \left( \frac{73.3 - 37.6}{37.6} \right) \times 100 = \left( \frac{35.7}{37.6} \right) \times 100 \approx 94.95\% \][/tex]
- Iron:
[tex]\[ \left( \frac{7.3 - 0.3}{0.3} \right) \times 100 = \left( \frac{7.0}{0.3} \right) \times 100 \approx 2333.33\% \][/tex]
From these calculations, we observe that the output for iron increased about 400% (it actually increased by much more, approximately 2333.33%).
Step 3: Determine what happened to the output for all three products between 1913 and 1921.
To find this, let's compare the values for each product between those years:
- Coal: 29.0 (1913) to 9.0 (1921) — decreased
- Grain: 80.0 (1913) to 37.6 (1921) — decreased
- Iron: 8.5 (1913) to 0.3 (1921) — decreased
From this, we can see that the output for all three products decreased between 1913 and 1921.
Conclusion:
- The chart shows that output for iron increased about 400% (actually 2333.33%) between 1921 and 1928.
- The chart shows that output for all three products (coal, grain, and iron) decreased between 1913 and 1921.
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