Teacher asked the fifth class students to choose the best name games, 1/8 of students chosen the football game, the number of students that chosen the football game were 13 student, what was the real number of fifth class students?
answer

104

Step-by-step explanation:

We construct a formula that represents this information:

(1/8) * CLASS = 13

Let's let CLASS = X

So,

(1/8) * X = 13

Now, we solve for X, by multiplying both sides of the equation by 8 (we do this when we have a fraction and want to "cancel out" the fraction).

8 * (1/8) * X = 13 * 8

X = 104

So, there are 104 students in the class.

why, what did he/she do?