Final answer:
The correct pair of linear equations representing the cost and number of tickets for the family who went to a movie is option a) 9x + 7y = 62, x + y = 8, where x is the number of adult tickets and y is the number of children's tickets.
Step-by-step explanation:
The correct pair of equations based on the information provided would be: 9x + 7y = 62 and x + y = 8. Here's why:
- The cost of an adult ticket is $9.00: this gives us the 9x term in our equation, where x is the number of adult tickets.
- The cost of a children's ticket is $7.00: this gives us the 7y term in our equation, where y is the number of children's tickets.
- The total cost for all tickets is $62.00: this leads to the equation 9x + 7y = 62.
- The total number of family members is 8: this gives us the equation x + y = 8.
Option a) matches our equations and is hence the correct choice.