NEED HELP POR FAVOR
A group of 11 people are going to the movies one Saturday. Adult tickets cost $13.50 each and child tickets cost $8.25 each. If the total cost for admission to the movies is $111.75, how many children attended the movie?
K so you have to set 2 equations like this x meaning the amount of adults and y meaning the amount of kids
x+y=11 13.5x+8.25y=111.75
Then use substitution method and you get x=11-y from the first equation plug that in to the second and you get
13.5(11-y)+8.25y=111.75 Solve for y in that equation by distributing and then combining like terms 148.5 - 13.5y + 8.25y = 111.75 148.5 - 5.25y = 111.75 Then, you need to subtract 148.5 from each side and cancel the negatives
5.25y=36.75 solve for y and you get 36.75/5.25 = 7 y=7 7 Children attended the movie.
