Question

2. Mr. Lavi determined that the total cost of his son's birthday party, c, could be represented by

the equation c = 20n + 300, where "n" is the number of people attending the party. If his
son's birthday cost $1120, how many people attended the birthday party?

Answer 1

41 people attended the party

Explanation:

`1120 = 20x + 300`

`1120 - 300 = 20x`

`820 = 20x`

`x = 41`