algebra
posted by Brooke
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?

Scott
c + a = 320
6c + 8a = 2340
8c + 8a = 8(320)
2c = 8(320)  2340 
Laurie
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(320c)=320
6c+25608c=320
2c+2560=320
2c=220
c=110
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