Question 26407
Let number of adults be "x"
The number of child tics is "24-x"
Value of adult tickets is 17x
Value of child tickets is 8(24-x)=192-8x
EQUATION:
Value + Value = 363 dollars
17x+192-8x=363
9x=171
 x=19 (number of adult tickets sold)
24-x=5 (number of child tickets sold)

Cheers,
Stan H.