Seventeen members of Tracy’s family are going to an amusement park during the week of their family reunion. Adult tickets cost $32.50 each and child tickets cost $28 each. If the total cost for admission to the part is $530, how many adults went to the park?

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12

Question

Seventeen members of Tracy’s family are going to an amusement park during the week of their family reunion. Adult tickets cost $32.50 each and child tickets cost $28 each. If the total cost for admission to the part is $530, how many adults went to the park?

 5

 7

 10

 12

anonymous · Answer

let x be the # of adult tickets and y the # of children tickets

32.50x + 28.00y = 530

but we also know that the total # of people here is 17 so

x + y = 17