SOLUTION: There are 13 animals in the barn. Some are chickens and some are pigs. There are 40 legs in all. How many of each animal are there?
Algebra.Com
Question 1021778: There are 13 animals in the barn. Some are chickens and some are pigs. There are 40 legs in all. How many of each animal are there?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
C=chickens; P=pigs
.
C+P=13
P=13-C
.
4P+2C=40
4(13-C)+2C=40
52-4C+2C=40
-2C=-12
C=6
.
P=13-C=13-6=7
.
ANSWER: There are 6 chickens and 7 pigs.
.
CHECK:(leg count)
.
4P+2C=40
4(7)+2(6)=40
28+12=40
40=40
RELATED QUESTIONS
There are 13 animals in the barn. Some are chickens and some are pigs. There are 40 legs... (answered by richwmiller)
There are 13 animals in the barn. Some are chickens and some are pigs. There are 40 legs... (answered by ikleyn,ewatrrr)
Please help me sole this problem:
There are 13 animals in a barn. Some are chickens and... (answered by Tatiana_Stebko)
There are 22 animals in the barn. Some are horses and some are chickens. There are 60... (answered by stanbon)
there are 13 animals in the barn.some are chicken some are pigs. there are 40 legs in... (answered by Simnepi,htmentor)
There are twenty-seven animals in a barn. Some are chickens some are cows. There are 90... (answered by solver91311,chungchengg,ikleyn)
A farmer has 3 types of animals in his barn: chickens, cows and pigs. The farmer has 80... (answered by ikleyn,Edwin McCravy)
There are 15 animals in the field. Some are sheep and some are chickens. There are 40... (answered by jim_thompson5910)
A Farmhouse shelters 10 animals. some are pigs and some are ducks. Altogether there are (answered by japunzalan13)