The ice rink sold 99 tickets for the afternoon session, for a total of $915. General admission tickets cost $15 and youth tickets cost $5 each. How many of each kind of tickets were sold?
General admission:
Youth:

42 general admission tickets and 57 youth tickets were sold.

Step-by-step explanation:

Since the ice rink sold 99 tickets for the afternoon session, for a total of $ 915, and general admission tickets cost $ 15 and youth tickets cost $ 5 each, to determine how many of each kind of tickets were sold the following calculation must be performed:

15 - 5 = 10

99 x 5 = 495

915 - 495 = 420

420/10 = 42

99 - 42 = 57

(42 x 15) + (57 x 5) = X

630 + 285 = X

915 = X

Thus, 42 general admission tickets and 57 youth tickets were sold.

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2