In a pen of goats and chickens there are 25 heads and 90 feet. how many goats and chickens are in the pen.

5 chickens, 20 goats

Step-by-step explanation:

We can set up two equations and use substitution

There are 25 total goats and chickens, so

Goats have 4 feet and chickens have two, so

By solving for G in the first equation,

We can now use substitution,

We have 5 chickens, so we have 20 goats.

Let's double check:

It checks out!

3rd box is the answer

step-by-step explanation: