Question 1061166
a+c = 300 subtract c from both sides
a = 300-c
and
10a+5c = 2,500
10(300-c)+5c = 2,500
3,000-10c+5c = 2,500
-5c = -500
c = 100 these are the children's tickets that were sold
a = 300-100 = 200 this is how many adult tickets they sold