coolcar1000 coolcar1000

13-01-2019
Mathematics

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On Saturday, $585 was collected from the sale of 55 tickets for a performance. Adult tickets are $12 and student tickets cost 25% less than adult tickets. Find the number of adult tickets and number of student tickets sold on that day.

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meredith48034 meredith48034

13-01-2019

12(.25)= 3. 12-3= 9 for student tickets

x = adult tickets

y = student tickets

x + y = 55

12x + 9y= 585

-12x - 12y = -660

-3y = -75

3y = 75

y = 25 student tickets

x + 25 = 55

x = 30 adult tickets

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