At a movie theater, child admission is $5.80 and adult admission is $$9.70. On Monday, three times as many adult tickets as child tickets were sold, for a total sale of $732.90. How many child tickets were sold that day?

Answer 1

c(5.80) + a(9.70) =732.90 a = 3c

Substitute 3c for a.
c(5.8) + 3c(9.70) =732.90 Solve for c

Answer 2

x child tickets were sold.
3x adult tickets were sold.

5.8x + (9.7)3x = 732.90.
X =