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)
-- (2)
-- (3)
Make C the subject in (3)

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


Make S the subject

-- (2)



Substitute 



Solve for A


Recall that: 


Recall that: 



Hence, the result is:



Answer:
7 units
Step-by-step explanation:

=7
Answer:
7.7%
Step-by-step explanation:
This symbol "∩" means intersection of both sets or what do both sets contain that are the same..
First set contains all numbers less than -5 and the other set contains all numbers greater than 5 so the sets don't overlap at all.
The solution set is empty ∅