Afarm raised a total of 220
chickens and pigs. the number of legs of the stock are 520. how many chickens and pigs are at the farm?

180 chickens and 40 pigs

Step-by-step explanation:

We are given;

We are required to determine the number of chickens and pigs in the farm;

To answer the question we need to know the following;

Assuming the number of chickens is x and the number of pigs is y

Then we can form two equations;

We can solve the two equations simultaneously to find the number of chickens and pigs;

x + y = 220

2x + 4y = 520

Multiplying the first equation by 2, we get

2x + 2y = 440

2x + 4y = 520

Eliminating x, we get;

- 2y = -80

    y = 40

Solving for x;

x = 220 - y

  = 220 - 40

x  = 180

Therefore, there are 180 chickens and 40 pigs at the farm

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