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Answer:
the answer is 36
Step-by-step explanation:
beacuse if we use the pythagorean theorem for 9 and 12 we get 15 which means that the perimeter is P=9+15+12=36
Answer:
The attendance was 198 children, 90 students and 99 adults.
Step-by-step explanation:
We define:
c: children attendance
s: students attendance
a: adult attendance
The equation that describes the total ticket sales is:
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We also know that the children attendance doubles the adult attendance:
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The third equation is the seating capacity, which we assume is full:
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We start by replacing variables in two of the equations:
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Then, we solve the remaining equation for a:
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Then, we solve for the other two equations:
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The attendance was 198 children, 90 students and 99 adults.