Question

The student council is sponsoring a carnival to raise money. $5 for adults and $3 for students. The student council want to raise $450. How do you write an equation to find the number of each type of ticket they should sell?

Answer 1

I would use: `5a+3s=540`

Explanation:

Call the number of adults `a` and students `s`, so you get:
`5a+3s=540`
You can set a fixed value for, say, the number of adults and deduce the necessary number of students to get the required amount.