SOLUTION: Old McDonald has a farm with 108 chickens. The chickens comprise 60% of his farm, and the rest of his animals are cows. Use Polya's four - step process to determine how many animal

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Question 1165714: Old McDonald has a farm with 108 chickens. The chickens comprise 60% of his farm, and the rest of his animals are cows. Use Polya's four - step process to determine how many animal feet are there in his farm?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
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farm with 108 chickens. The chickens comprise 60% of his farm, and the rest of his animals are cows.
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A, total animals chickens plus cows
0.6A=108
A=108%2F0.6
A=180

Number of cows, 180-108=highlight%2872%29

How many feet for all the chickens and cows:
2%2A108%2B4%2A72
highlight%28504%29 feet

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Answer by MathTherapy(10551) About Me  (Show Source):
You can put this solution on YOUR website!
Old McDonald has a farm with 108 chickens. The chickens comprise 60% of his farm, and the rest of his animals are cows. Use Polya's four - step process to determine how many animal feet are there in his farm?
What the other person has is RUBBISH!! So, we get this: cross%28highlight%282%2A65%2B4%2A43%29%29

With 60% of animals on the farm comprising of chickens, and remaining animals being cows, number of cows (C) = matrix%281%2C3%2C+.6%2F.4%2C+%22=%22%2C+108%2FC%29

.6C = .4(108) ------ Cross-multiplying 

Number of cows, or matrix%281%2C5%2C+C%2C+%22=%22%2C+.4%28108%29%2F.6%2C+%22=%22%2C+72%29

Having 108 chickens (2 feet each), and 72 cows (4 feet each), you should now be able to calculate the number of animal feet, not including the farmer's, of course! lol!

BTW: You need to figure out that Polya's 4-step process. That's not for us to do!!