Every kid in mr. levans's 3rd grade class made a valentine for every kid in the class, including him- or herself. if the class made a total of 484 valentines, how many kids are in the class?

Let the total number of kids in Mr. Levans' 3rd grade class be x.

We know that each kid in the class made a Valentine for every kid in the class, including himself or herself.

So, the first kid made x Valentines. Likewise, the second kid too made x Valentines. If we go on so on and so forth, we will note that even the last, or the kid made x Valentines too. Thus, this way we know that every kid made x Valentines.

Therefore, the total number of Valentines made are . It is given in the question that the number of Valentines made is 484.

Therefore, from the above information we conclude that:

To find x we will have to take the square root of both sides. Which will give us:

Thus, the number of kids in the class is 22.