3) Noah is helping to collect the entry fees at his school's sports game.
Student entry costs $2.75 each and adult entry costs $5.25 each. At
the end of the game, Diego collected $281.25.
How to write an equation that uses "x" as the amount of students and
"y" the amount of adults?
The total amount for students is 2.75x >>> We multiply!
The total amount for teachers is 5.25y >>> multiply again!
Then both totals have to equal $281.25.
Thus, the equation to model the situation is:
2.75x + 5.25y = 281.25