Each student at Madison middle school owns three spiral notebooks. Mrs. Campbell wants to calculate the total number of notebooks in the middle school. What variable is needed to calculate the total?
s, the number of students at the school
t, the number of teachers who have notebooks
n, the number of spiral notebooks per student
r, the number of students with red notebooks

Question

Each student at Madison middle school owns three spiral notebooks. Mrs. Campbell wants to calculate the total number of notebooks in the middle school. What variable is needed to calculate the total?
s, the number of students at the school
t, the number of teachers who have notebooks
n, the number of spiral notebooks per student
r, the number of students with red notebooks

kiwibyrd · Answer

which do you think it is?

kiwibyrd · Answer

we can rule out N, because we already know they have 3

mrhirohito · Answer

s?

agent0smith · Answer

Why do you think you need s? If you can explain, I'll tell you if you're correct.

mrhirohito · Answer

Well they said each student in the school as three spiral notebooks.
So they want to find out how many notebooks they have. Thats why i chose s since its fit it.

kiwibyrd · Answer

that's right

agent0smith · Answer

Yep, since they aren't interested in teachers, or red notebooks, and the total number of students would help them find the total number of notebooks