89.0k views
0 votes
the movie theater is showing the movie trolls. they charge $5 per ticket for a child and $12 per ticket for an adult. they sell a total of 342 tickets and make a total of $2550. how many of each type of tickets did they sell?

User Jeanc
by
8.6k points

1 Answer

2 votes
a + c = 342...a = 342 - c
12a + 5c = 2550

12(342 - c) + 5c = 2550
4104 - 12c + 5c = 2550
-12c + 5c = 2550 - 4104
-7c = - 1554
c = -1554/-7
c = 222

a + c = 342
a + 222 = 342
a = 342 - 222
a = 120

adult tickets sold (a) was 120, child tickets sold (c) was 222

User Chanchal Raj
by
8.4k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.