It looks like you're working with a set of equations that involve the variable \( r \) and the number of residents surveyed. Let's break down what you've provided and solve for \( r \) where applicable.
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Equation: 25r = 80 \[ r = \frac{80}{25} = 3.2 \]
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Equation: \(\frac{2}{5} r = 80\) \[ r = 80 \times \frac{5}{2} = 200 \]
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Equation: 52r = 80 \[ r = \frac{80}{52} = \frac{20}{13} \approx 1.54 \]
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Equation: \(\frac{5}{2} r = 80\) \[ r = 80 \times \frac{2}{5} = 32 \]
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Equation: 80r = 25 \[ r = \frac{25}{80} = \frac{5}{16} = 0.3125 \]
In summary, here are the values of \( r \) for the given equations:
- From 25r = 80, \( r = 3.2 \)
- From \(\frac{2}{5} r = 80\), \( r = 200 \)
- From 52r = 80, \( r = \frac{20}{13} \approx 1.54 \)
- From \(\frac{5}{2} r = 80\), \( r = 32 \)
- From 80r = 25, \( r = \frac{5}{16} = 0.3125 \)
If you need specific information regarding the residents surveyed or any additional computations, please let me know!