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Let's find the required ratios first: to get to the relative percentages, we'll simply have to multiply by 100.
Since there are 16 girls, 10 boys and 9 adults, there are

people in total.
So, the ratio of girls is

The ratio of boys is

The ratio of adults is

1. is 7.52 :) so easy lol
Answer:
X=12
Step-by-step explanation:
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