Tickets for a school play cost $6 each. Brandy sold 8 tickets to her father, then sold another x tickets to her aunt. Brandy ended up collecting $66. Write an equation that can be used to find x, number of tickets sold to her aunt.

(x+ ) =

6(x+8)=66

Step-by-step explanation:

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geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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