Amanda, this is the solution:
Step 1: We need to calculate the percentage of students surveyed that chose voleyball as their favorite sport. We will subtract the percentages given from 100, that is the total.
• Voleyball percentage = 100 - 30 (Soccer) - 20 (Basketball) - 20 (Tennis) - 10 (Badminton)
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• Voleyball percentage = 100 - 80
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• Voleyball percentage = 20
Step 2: Now that we know that 20% of the students surveyed chose voleyball as their favorite sport, we will calculate the number of students that correspond to this percentage.
• Number of students = Total students surveyed * Voleyball percentage
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• Number of students = 60 * 20%
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• Number of students = 60 * 0.2
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• Number of students = 12