On Saturday, 760 more women than men attended a concert. On Sunday, the number of women decreased by 20% and the number of men increased by 70%. 1383 audience attended the concert on Sunday. If each ticket cost $10, how much money was collected from the sale of concert tickets to all the men?

	Women		Men
Comparing between the women and the men at first	760 more
Before	5x2	+ 760	10x1
Change	- 1x2	- 152	+ 7x1
After	4x2	+ 608	17x1

	Women		Men
Before	10 u + 760		10 u
Change	- 2 u - 152		+ 7 u
After	8 u + 608		17 u

20% = ²⁰₁₀₀ = ¹₅

70% = ⁷⁰₁₀₀ = ⁷₁₀

20% x 760
= ²⁰₁₀₀ x 760
= 152

760 - 152 = 608

Total number of tickets sold on Sunday 
= 8 u + 608 + 17 u
= 25 u + 608 

25 u + 608 = 1383
25 u = 1383 - 608
25 u = 775

1 u = 775 ÷ 25 = 31

Total number of tickets sold to all the men
= 10 u + 17 u
= 27 u 
= 27 x 31
= 837

Amount collected from the sale of concert tickets to all the men
= 837 x 10
= $8370

Answer(s): $8370