A movie theater has 85 seats. One rainy day in the summer, all seats were sold and the ticket income was $121. If adult tickets

Question

3 years ago

8

cost $3 and children tickets cost $1, how many children were in the audience?

1 answer:

iogann1982 [59] · Answer 1 · 2022-04-09T00:34:09+03:00

5 0

Answer:

children = 67

Step-by-step explanation:

two equations can be derived from this question

x + y = 85 equation 1

3x + y = 121 equation 2

where x = number of adults

y = number of children

subtract equation 1 from 2

2x = 36

x = 18

substitute for x in equation 1

y = 85 - 18 = 67