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The farmer has 220 animals with total of 700 legs how many pigs does the farmer have?
Wiki User
∙ 15y ago
C=chicken
P=pig
c+p= 56
2c+4p=160
c=56-p
112-2p+4p=160
2p=48
p=24
c=32
There are twenty-four pigs, thirty-two chickens. You really should do your own homework.
Wiki User
∙ 16y ago
Wiki User
∙ 15y agook so..... there have to be 2 times more pigs then chickens.... so in the barn there are 2 chickens and 4 pigs
2 (chickens) x 2 (legs) = 4 (legs)
4 (pigs) x 4 (legs) = 16 (legs)
4 (legs) + 16 (legs) = 20 (legs)
Wiki User
∙ 13y agoOkay, for starters, we have an unknown amount of chickens, x, and an unknown amount of pigs, y. Now we know that the total amount of pigs and chickens is 220, so
x + y = 220
Next, we know that chickens have 2 legs each, pigs have 4 legs each, and the total amount of legs is 700 so
2x + 4y = 700
Now we have two equations and two unknowns, so we can solve by substitution. Solving the first equation for y, we get
y = 220 - x
Now put that in for the y in the second equation
2x + 4(220 - x) = 700
distribute the 4 and
2x + 880 - 4x = 700
subtracting 880 from both sides and adding -4x and 2x we have
-2x = -180
divide by -2 and
x = 90 chickens
put that in for x in the first equation and solve for y, you get
y = 130 pigs
Wiki User
∙ 15y agoIT DOES NOT MAKE SENSE!!! YOU HAVE TO SAY WHAT OTHER ANIMALS HE HAVE
SO YOU CAN MAKE AN EQUATION!!!!!!!
Wiki User
∙ 15y ago40 pigs and 20 chickens plus 1 goat
Wiki User
∙ 14y ago130 pigs and 90 chicks
Add your answer:
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