For a game, a school bought 100 pizzas. Some were pepperoni and some were cheese. There are 4 times as many pepperoni pizzas as cheese pizzas. How many cheese pizzas did the school buy?

c + 4c = 100

what is c

c is cheese pizzas

To find the number of cheese pizzas the school bought, we can set up a system of equations based on the given information.

Let's say the number of cheese pizzas is represented by "C", and the number of pepperoni pizzas is represented by "P".

From the problem, it is given that the school bought a total of 100 pizzas, so we can write the first equation as:
C + P = 100

It is also given that there are 4 times as many pepperoni pizzas as cheese pizzas, so we can write the second equation as:
P = 4C

Now we can solve these equations to find the value of C (number of cheese pizzas):

Substitute the value of P from the second equation into the first equation:
C + 4C = 100

Combine like terms:
5C = 100

Divide both sides by 5:
C = 20

Therefore, the school bought 20 cheese pizzas.