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poizon [28]
3 years ago
8

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

cost $3 and children tickets cost $1, how many children were in the audience?
Mathematics
1 answer:
iogann1982 [59]3 years ago
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

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