Tickets to a concert cost $15 online and $25 at the door. one hundred more people bought their tickets at the door than online. if ticket sales totaled $20,500, how many people bought their concert tickets online?

The number of people bought their tickets online = 450 and the number of people bought their tickets offline = 550 .

Step-by-step explanation:

Let x = Number of tickets sold online.

y= Number of tickets sold at the door.

As per given , we have the following linear equation:

Put value of y from (1) in (2) , we get

Put value of x in (1), we get

Hence, the number of people bought their tickets online = 450 and the number of people bought their tickets offline = 550 .

b.-4 units

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