Question

Pranav's school is selling tickets

Answer 1

Answer:

The cost of one adult ticket is $8 and cost of one student ticket is $4.

Step-by-step explanation:

Let,

x be the price of one adult ticket

y be the price of one student ticket

According to given statement;

12x+7y=124    Eqn 1

x+3y=20        Eqn 2

Multiplying Eqn 2 by 12

12(x+3y=20)

12x+36y=240     Eqn 3

Subtracting Eqn 1 from Eqn 3

(12x+36y)-(12x+7y)=240-124

12x+36y-12x-7y=116

29y=116

Dividing both sides by 29

$\frac{29y}{29}=\frac{116}{29}\\y=4$

Putting y=4 in Eqn 2

x+3(4)=20

x+12=20

x=20-12

x=8

Hence,

The cost of one adult ticket is $8 and cost of one student ticket is $4.