Question 558043: Charlie has 11 animals at home, consisting of dogs and parrots. If there are 38 legs total, how many dogs does he have? Found 2 solutions by saifoo.khan, stanbon:Answer by saifoo.khan(162) (Show Source):
You can put this solution on YOUR website! Hi,
:
x = dogs.
y = parrots.
:
Equation 1
x + y = 11
:
Equation2:
4x + 2y = 38
Solve both! :)
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Cheers/
Saifoo.khan
einstein.saifoo@gmail.com
You can put this solution on YOUR website! Charlie has 11 animals at home, consisting of dogs and parrots. If there are 38 legs total, how many dogs does he have?
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Animal count: d + p = 11
Leg count::: 4d + 2p = 38
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Multiply thru the Animal count equation by 4 to get:
4d + 4p = 44
4d + 2p = 38
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Subtract and solve for "P":
2p = 6
p = 3 (# of parrots)
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Solve for "d":
d + p = 11
d + 3 = 11
d = 8 (# of dogs)
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Cheers,
Stan H.
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