Answer:
170 children
74 students
85 adults
Step-by-step explanation:
Given
Let:

For the capacity, we have:

For the tickets sold, we have:

Half as many as adults are children implies that:

Required
Solve for A, C and S
The equations to solve are:
 -- (1)
 -- (1)
 -- (2)
 -- (2)
 -- (3)
 -- (3)
Make C the subject in (3)

Substitute  in (1) and (2)
 in (1) and (2)
 -- (1)
 -- (1)


Make S the subject

 -- (2)
 -- (2)



Substitute 



Solve for A


Recall that: 


Recall that: 



Hence, the result is:



 
        
             
        
        
        
Hi my name is bob plz give brainpower
        
             
        
        
        
Answer:
-3<x<3
Step-by-step explanation:
let y=0 
0=x^2-9
0=(x+3)(x-3)
x=-3 and x=+3
 
        
             
        
        
        
5: THEO = what should happen
 EXP = Wha actually happens.
 
        
        
        
When I leave home to walk to school2And what I think I've seen3Now, what can I say4And I've kept careful track5Just a broken down wagon6When Isay that i saw it on Mulberry St7The story would really be better to hear8A reindeer is better; he's fast and he's fleet9To pull a thing that runs on wheels10Jack or Fred of Joe or NAT-11Say! That makes a story that no one can beat12But he'd look simply grand13If a man sits and listens while hitched on behind14But now what worries me is this...15To guide them through where's traffic's thick-16And he raises his hat as they dash by the stand.17With a roar of its motor an airplane appears18A big magician doing tricks..19For I had a story that NO ONE could beat!20There was so much to tell, I JUST COULDN'T BEGIN!21"Nothing," I said, growing red as a beet