Question

If a school cafeteria needs c cans of soup each week for each student, and if there are s students in the school, for how many weeks will x cans of soup last?

Answer 1

`(x)/(c*s) weeks`

Explanation:

SO in order to calculate that you need to first multiply the number of cups of soup a week by student that the cafeteria need, by the number of students, so if you have S number of student and each needs C amount of cups of soup, the cups of soup total will be CS.

So in order to know how many weeks will X number of cups will last you just divide the number of cups by CS:

`(x)/(c*s) weeks`

And that´s the answer.

Answer 2

x/(cs)

Explanation:

Let w represent the number of weeks we're feeding students soup.

`w\,\text{weeks}*\frac{c\,\text{cans}}{\text{student}\cdot\text{week}}* s\,\text{students}=x\,\text{cans}\\\\w=(x)/(c\cdot s)\qquad\text{divide by $c\cdot s$}`