Answer:
Step-by-step explanation:
An adult ticket costs $2 more than a child ticket
Let x and (x + $2)represent the cost of the child and adult ticket respectively
2(x+ $2) + 3x = $34
now solving for x
2x+ $4 + 3x = $34
5x = $30
x = $6 , the cost of the child ticket.
the cost of adult ticket $6+2=$8
D
using the double - angle identity
cos (2A) = cos² A - sin² A = 2cos² A - 1 = 1 - 2sin² A
the right side = 1 - 2sin² (112.5° ) with A = 22.5°
hence 2A = 2 × 22.5° = 45°
thus cos 45° = 1 - 2sin² ( 22.5°)
Step-by-step explanation:
BC is the bisector of 
From equations (1) & (2)
(Because sides opposite to equal angles are equal)
Hence Proved
Answer:
1) a
2) a
Step-by-step explanation:
Please see the attached pictures for the full solution.
150 lower level
200 upper level
Let x = lower level and y = upper level. You can then set up an equation for cost as:
35x + 25y = 10,250
and the equation for total tickets as:
x + y = 350.
Solve using any method.
