Question

There are 12 third grade students and 15 fourth grade students in the band. They will travel to a convert in cars that can hold 4 students each. Which of these can be used to find out how many cars are needed to drive the students?
(12 + 15) ÷ 4 = s

(15 - 12) ÷ 4 = s

15 + 12 - 4 = s

15 + 12 + 4 = s

Answer 1

(12+`15) ÷ 4 = s

that is because you have to basically do average for this problem

Answer 2

The answer is the first one (12+15) / 4