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Dima020 [189]
3 years ago
5

a farmer saw some chickens and pigs in a field. he counted 60 heads and 176 legs. determine exactly how many chickens and pigs h

e saw.

Mathematics
1 answer:
Alisiya [41]3 years ago
8 0

Answer:

32 chickens and 28 pigs

Step-by-step explanation:

This is a solve the system question. Call C the number of chickens and P the number of pigs. Each chicken and each pig has one head so the first equation is:

C+P=60

Each chicken has 2 legs and each pig has 4 legs so the second equation is:

2C+4P=176

To solve by substitution, first rearrange the first equation to isolate C:

C=60-P

Now substitute that into the second equation and solve for P:

2(60-P)+4P=176\\120-2P+4P=176\\2P=56\\P=28

So there are 28 pigs. Now sub that into either of the original equations. I'll use the first:

C+28=60\\C=32

There are 32 chickens.

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