11 chaperons will be needed for 99 students
Step-by-step explanation:
Given
2 adult chaperons for 18 students
Let x be the number of chaperons for 99 students
The proportion is direct proportion as if there are more students, more chaperons will be needed.
So,
[tex]2:18::x:99\\\\\frac{2}{18}=\frac{x}{99}\\\\x = \frac{2*99}{18}\\\\x = \frac{198}{18}\\x = 11[/tex]
Hence,
11 chaperons will be needed for 99 students
Keywords: Proportion, Ratio
Learn more about proportion at:
- brainly.com/question/10879401
- brainly.com/question/10940255
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