Question 67821
C+A=21 & 550*A+350*C=8350
C=21-A
550A+350(21-A)=8350
550A+7350-350A=8350
200A=8350-7350
200A=1000
A=1000/200
A=5 ANSWER FOR NUMBER OF ADULT TICKETS SOLD
21-5=16 ANSWER FOR CHILDREN TICKETS SOLD
PROOF
550*5+350*16=8350
2750+5600=8350
8350=8350