Answer:
55 adult tickets were sold on Friday.
Step-by-step explanation:
A linear system will be used to model the system.
Let c be the number of child tickets and a be the number of adult tickets
Then according to given statements

From equation 1

Putting this in equation 2

Putting c = 78 in equation 1

Hence,
55 adult tickets were sold on Friday.
Answer: 1, 13 is the answer
The LCM of 6 and 15 is 30:)
Answer:
1234567890
Step-by-step explanation:
When adding fractions you need to get common denominators then you multiply too times bottom and then boom add and there you go