c + a = 320
6c + 8a = 2340
8c + 8a = 8(320)
2c = 8(320) - 2340
Tickets to a sporting event cost $6 for children and $8 for adults. The total revenue from the tickets sold was $2340. There were 320 total tickets sold.
How many children’s tickets were sold?
2 answers
110 children's tickets were sold and 210 adult tickets were sold. Using the first 2 equations set up by Scott & ignoring the last 2 steps, I used substitution to solve for c "the number of children's tickets sold.
6c+8(320-c)=320
6c+2560-8c=320
-2c+2560=320
-2c=-220
c=110
6c+8(320-c)=320
6c+2560-8c=320
-2c+2560=320
-2c=-220
c=110
1 answer