Mary sold 50 tickets students cost 2 dollars adults 5 dollars. total sales were 154. how many adult tickets and students tickets were sold

Answer 1

2C + 5A = 154

C + A = 50

2C + 2A = 100

subtract 3rd equation above from the 1st equation to get

3A = 54, divide both sides by 3

A = 54/3 = 18 adult tickets sold

C = 50-18 = 32 children's tickets sold