234 = a + s s = students a = adults 2a = s after you get the equations you solve. plug 2a into the above equation. so u get 234 = a + 2a 234=3a then divide 3 from each side 78 = a so 78 adult tickets were sold
First you know there are 5 students and 5 teachers, for each student it costs 6.25 and for every teacher it cost 1.50. So 5 teachers x 1.50= 7.5. 5 students x 1.25 =6.25. 7.5 +6.25= 13.75