Question 1064880
a+c=180
c=180-a
5.20c+8.50a=1216.50
5.20(180-a)+8.50a=1216.50
936-5.20a+8.50a=1216.50
3.30a=1216.50-936
a=280.50/3.30
a=85 adults
c=180-85
c=95 children