At a bird park, each adult ticket cost $33 and each child ticket cost $5. On Wednesday, the number of adult tickets sold was 100 less than the number of child tickets. On Thursday, the number of adult tickets sold decreased by 30% while the number of child tickets sold increased by 10%. If a total of 1730 tickets were sold on Thursday, how much money was collected on Wednesday?

	Adult tickets	Child tickets	Total tickets
Before	1 u	1 u + 100	2 u + 100
Change	- 0.3 u	+ 0.1 u + 10
After	0.7 u	1.1 u + 110	1.8 u + 110

30% x 1 u = ³⁰₁₀₀ x 1 u = 0.3 u 
10% x 1 u = ¹⁰₁₀₀ x 1 u = 0.1 u
10% x 100 = ¹⁰₁₀₀ x 100 = 10

Number of tickets sold on Thursday
= 0.7 u + 1.1 u + 110
= 1.8 u + 110

1.8 u + 110 = 1730
1.8 u = 1730 - 110
1.8 u = 1620

1 u = 1620 ÷ 1.8 = 900

Amount collected from adult tickets on Wednesday
= 1 u x 33
= 900 x 33
= $29700

Amount collected from child tickets on Wednesday
= 5(1 u + 100)
= 5(900 + 100)
= 5 x 1000
= $5000

Total amount collected on Wednesday
= 29700 + 5000
= $34700

Answer(s):$34700