Couldn't fit the whole problem. Question in the description

Question

tickets for the homecoming dance cost $20 for a single ticket or $35 for a couple. Ticket sales totaled $2280, and 128 people attended. How many tickets of each type were sold?

Answer 1

Bernie, let's start with 64 singles and 32 couples.

 

64(20) + 32(35) = 1280 + 1120 = 2400

 

We're $120 over. That's an 8 ticket difference. 

 

72(20) + 24(35) = 1440 + 840 = 2280

 

72 single tickets and 24 couples tickets were sold!