Answer :
Answer:
system of equations:
8a+5.5s=1385
a+s=220
answer:
a=50
s=150
Step-by-step explanation:
let a=adults
let s=students
8a+5.5s=1385
a+s=220
a=70
s=150
Answer: 70 adults tickets and 150 student tickets were sold.
Step-by-step explanation:
Let x represent the number of adult tickets that were sold.
Let y represent the number of student tickets that were sold.
There were 220 tickets sold. It means that
x + y = 220
Tickets to a local movie were sold at $8.00 for adults and $5.50 for students. The tickets were sold for a total of $1,385.00. It means that
8x + 5.5y = 1385- - - - - - - - - 1
Substituting x = 220 - y into equation 1, it becomes
8(220 - y) + 5.5y = 1385
1760 - 8y + 5.5y = 1385
- 8y + 5.5y = 1385 - 1760
- 2.5y = - 375
y = - 375/- 2.5
y = 150
x = 220 - y = 220 - 150
x = 70