12 a + 8.5 s = 10,175
a+s = 950 so s = (950-a)
12 a + 8.5(950-a) = 10,175
12 a + 8075 - 8.5 a = 10,175
3.5 a = 2100
a = 600
Tickets to a concert cost $12 for adults and $8.50 for students. A total of 950 people paid $10175. How many adults were at the concert
1 answer