Answer:
Children ticket cost $30 and adult ticket costs $40.
Step-by-step explanation:
Given that:
x = price of a child ticket
y = price of an adult ticket
According to given statement;
3x+2y=170 Eqn 1
4x+6y=360 Eqn 2
Multiplying Eqn 1 by 3
3(3x+2y=170)
9x+6y=510 Eqn 3
Subtracting Eqn 2 from Eqn 3
(9x+6y)-(4x+6y)=510-360
9x+6y-4x-6y=150
5x=150
Dividing both sides by 5

Putting x=30 in Eqn 1
3(30)+2y=170
90+2y=170
2y = 170-90
2y = 80
Dividing both sides by 2

Hence,
Children ticket cost $30 and adult ticket costs $40.
Answer:
2
Step-by-step explanation:
12. The inverse relation has the x- and y-values swapped.
The appropriate choice is ...
D. (13, 5)
Answer:
B. 40 percent
Step-by-step explanation:
First take the new price minus the original price
175-125
50
Divide by the original price
50/125
.4
Multiply by 100%
.4 *100% = 40%