30% = 30/100 = 3/10
3/10 x 620
620 / 10 = 62
62 x 3 = 186
There are a total of 186 sixth grade students.
Explanation:
30% = 3/10
number of sixth grade students = 3/10 × 620
divide by denominator
620 ÷ 10 = 62
multiply by numerator
62 × 3 = 186
Therefore there are 186 sixth grade students
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