Question 908775
n+q=430,
6*n+4.5*q=2175
n=430-q
6*(430-q)+4.5*q=2175
2580-6q+4.5*q=2175
-1.5*q=-405
q=270.0
n=430-q
n=160 tickets at $6.00 and  q=270 tickets at $4.50
check
160+270=430
6*n+4.5*q=2175
6*160+4.5*270=2175
960+1215.0=2175
2175.0=2175
ok