479,663 views
21 votes
21 votes
A group of adults plus one child attend a movie at a movie theater. Tickets cost $9 for adults and $3 for children. The total cost for the movie is $57. Enter an equation to find the number of adults in the group

The equation
____+ _____ a = ________
can help find out how many adults were in the group.

User Not So Sharp
by
3.0k points

2 Answers

12 votes
12 votes

Answer:

3 + 9a = 57

(57-3) / 9

=54/9

=6

6 adults were in the group

User Matveytn
by
2.6k points
15 votes
15 votes

Answer:

There are 6 adults. My mistake! I had the wrong equation. 3 + 9a = 57.

Explanation:

  • There is only 1 child in the group.
  • Cost for children is 3$.
  • The cost for adults is 9$.
  • 9 * 6 = 54
  • 3 * 1 = 3
  • 3 + 9a = 57
  • Simplify:
  • 6 Adults.
User Alex Leibowitz
by
3.2k points