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Jillian’s school is selling tickets for a play. The tickets cost $10.50 for adults and $3.75 for students. The ticket sales for opening night totaled $2071.50. The equation 10.50 a plus 3.75 b equals 2071.50, where a is the number of adult tickets sold and b is the number of student tickets sold, can be used to find the number of adult and student tickets. If 82 students attended, how may adult tickets were sold?

jhonyy9:

so given that adult ticket (a) cost $10,50 and student ticket (b) cost $3,75 ,the total ticket sales was $2071,50 ,given again that attended 82 students so 10,50a +3,75b = 2071,50 how you think what mean this : given again that attended 82 students ?