Math question please

Question

a total of 815

 tickets were sold for the school play. They were either adult tickets or student tickets. There were 65

 more student tickets sold than adult tickets. How many adult tickets were sold?

Answer 1

Hi June,

Let's use the variable , a , to represent the number of adult tickets sold. Then we can write the following expression for the number of students tickets sold using the information in your problem: a + 65

The total number of tickets was 815. We can write and solve the following equation to find the number of adult tickets:

Number of adult tickets + number of student tickets = 815

a + a + 65 = 815

Now combine like terms and use inverse operations to solve this equation:

2a + 65 = 815

2a + 65 - 65 = 815 - 65

2a = 750

2a/2 = 750/2

a = 375 tickets

The number of adult tickets will be 375.