To find the percent of people who had a mild allergic reaction, we can set up the percent proportion as follows:
\[ \frac{48}{6000} = \frac{p}{100} \]
Now, we can solve for \( p \), which represents the percentage of people with a mild allergic reaction.
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Cross-multiply to solve for \( p \): \[ 48 \times 100 = 6000 \times p \] \[ 4800 = 6000p \]
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Divide both sides by 6000 to isolate \( p \): \[ p = \frac{4800}{6000} \]
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Simplify the fraction: \[ p = \frac{48}{60} = \frac{4}{5} = 0.8 \]
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Convert to a percentage by multiplying by 100: \[ p = 0.8 \times 100 = 80% \]
So, the percent of the people who had a mild allergic reaction is 0.8%.