Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one advance ticket and one same-day ticket is $55. For one performance, 20 advance tickets and 35 same-day tickets were sold. The total amount paid for the tickets was $1700. What was the price of each kind of ticket?

Respuesta :

Answer:

Price of advance ticket: 15$

Price of same-day ticket: $40

Step-by-step explanation:

Let [tex]y[/tex] be the price of one advance ticket and [tex]x[/tex] the cost of one same day ticket.  

We know that the combined cost of one advance ticket and one same-day ticket is $55, so

[tex]y+x=55[/tex] equation (1)

We also know that 20 advance tickets and 35 same-day tickets cost $1700, so

[tex]20y+35x=1700[/tex] equation (2)

Now, let's solve our system of equations step-by-step:

step 1. Solve for [tex]x[/tex] in equation (1)

[tex]y+x=55[/tex]

[tex]x=55-y[/tex] equation (3)

step 2. Replace equation (3) in equation (2)

[tex]20y+35x=1700[/tex]

[tex]20y+35(55-y)=1700[/tex]

[tex]20y+1925-35y=1700[/tex]

[tex]-15y=-225[/tex]

[tex]y=\frac{-255}{-15}[/tex]

[tex]y=15[/tex] equation (4)

step 3. Replace equation (4) in equation (3)

[tex]x=55-y[/tex]

[tex]x=55-15[/tex]

[tex]x=40[/tex]

We can conclude that the price of one advance ticket is $15 and the price of one same-day ticket is $40.