Question

At the city museum, child admission is 5.50 and adult admission is 8.8 . On Thursday, three times as many adult tickets as child tickets were sold, for a total sales of 663.60 . How many child tickets were sold that day?

Answer 1

78

Explanation:

Adult tickets = x

Child tickets = 3(Adult tickets) = 3x

The cost of child admission is $5.50, and the cost of adult admission is $8.80. Multiply the cost of admission by the variables and set equal to the total sales.

8.8(x) + 5.5(3x) = 663.6

8.8x + 16.5x = 663.6

25.3x = 663.6

x = 26

Child tickets = 3x

Child tickets = 3(26)

Child tickets = 78

78 child tickets were sold that day.