To find the percent of the model that is shaded:
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Percent shaded: \[ \text{Percent shaded} = \left( \frac{\text{Number of shaded squares}}{\text{Total number of squares}} \right) \times 100 = \left( \frac{73}{100} \right) \times 100 = 73% \]
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Equivalent ratio: The equivalent ratio of shaded to unshaded squares is: \[ 73 \text{ (shaded)} : 27 \text{ (unshaded)} \quad \text{(since 100 - 73 = 27)} \]
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Equivalent decimal: To convert the fraction to a decimal: \[ \text{Decimal} = \frac{73}{100} = 0.73 \]
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Equivalent fraction: The fraction of shaded squares out of the total is: \[ \text{Fraction shaded} = \frac{73}{100} \] This fraction is already in its simplest form.
In summary:
- Percent shaded: 73%
- Equivalent ratio: 73:27
- Equivalent decimal: 0.73
- Equivalent fraction: \(\frac{73}{100}\)