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If you have 34 chickens and cows and count 100 legs how many do you have each of chickens and cows?
Wiki User
∙ 14y ago
Cow = x Chicken =y
x+y=34 -> x=34-y
4x+2y=100
4(34-y)+2y=100
126-4y+2y=100
-2y=-26
y=13 (13 chickens)
x=34-13=21 (21 cows)
There are 21 cows and 13 chickens.
Wiki User
∙ 14y ago
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On a farm there are three-legged-cows and chickens There are total of 45 heads and 110 legs How many three-legged-cows are on the farm?
Do-it-in-your-head method: If all animals were chickens there would be 90 legs. There are 20 extra legs, each on a cow, so there are 20 cows and therefore 25 chickens.
On a farm there are three-legged-cows and chickens there are a total of 119 heads and 332 legs how many three-legged-cows are on the farm?
94 three legged cows and 25 chickens.
On a farm there are chickens and three-legged-cows There are total of 66 heads and 163 legs How many chickens are on the farm?
Chickens (H) + Cows (C) = 66 : so C = 66 - H However there are 2H chickens legs and 3C cows legs : 2H + 3C = 163 Substituting for C gives : 2H + 3(66 - H) = 163 : 2H +198 - 3H = 163 : H = 35. Number of chickens = 35 (and number of cows = 66 - 35 = 31)
On a farm there are chickens and three-legged-cows. There are total of 64 heads and 147 legs. How many chickens are on the farm?
Suppose there are x chickens and y cows Then heads => x + y = 64 And Legs => 2x + 3y = 147 2*Heads: 2x +2y = 128 Subtract from Legs: 19 = y Substitute in Heads: x = 45 Answer: 45 chickens.
On a farm there are horses and chickens There are total of 131 heads and 448 legs How many horses are on the farm?
On a farm there are chickens and three-legged-cows. There are total of 49 heads and 130 legs. How many chickens are on the farm?
On a farm there are three legged cows and chickens there are a total of 48 heads and 122 legs how many three legged cows are there?
Do-it-in-your-head method: If all animals were chickens there would be 96 legs. There are 26 extra legs, each on a cow, so there are 26 cows and therefore 22 chickens.
On a farm there are three-legged-cows and chickens There are total of 45 heads and 110 legs How many three-legged-cows are on the farm?
Do-it-in-your-head method: If all animals were chickens there would be 90 legs. There are 20 extra legs, each on a cow, so there are 20 cows and therefore 25 chickens.
The dairy farm has both cows and chikensThe farm workers counted 50 legs and 18 heads how many cows are in the farm and how many chickens?
7 cows and 11 chickens. Cows have 4 legs. Chickens have 2 legs. (4 legs)(7 cows) + (2 legs)(11 chickens) = 50 legs. 7 cow heads = 11 chicken heads = 18 heads.
What has more legs 8 cows or 10 chickens?
A cow has 4 legs; therefore, 4 legs times 8 cows equals 32. A chicken has 2 legs; therefore, 2 legs times 10 chickens equals 20. So, 8 cows have more legs than 10 chickens.
On a farm there are three-legged-cows and chickens there are a total of 119 heads and 332 legs how many three-legged-cows are on the farm?
94 three legged cows and 25 chickens.
On a farm there are chickens and three-legged-cows There are total of 66 heads and 163 legs How many chickens are on the farm?
Chickens (H) + Cows (C) = 66 : so C = 66 - H However there are 2H chickens legs and 3C cows legs : 2H + 3C = 163 Substituting for C gives : 2H + 3(66 - H) = 163 : 2H +198 - 3H = 163 : H = 35. Number of chickens = 35 (and number of cows = 66 - 35 = 31)
There is 40 animals in a farm cows and chickens and the total legs is 100 and the answer is 30 chickens and 10 cows I just need someone to create an equation for me with that answer?
There are 40 animals in a farm cows and chickens and the total legs is 100 and the answer is 30 chickens and 10 cows. Use Guess and Check Method. No of Cows No of Chickens Total number of Legs Total number of animals Check 20 × 4 = 80 20 x 2 = 40 120 40 X 15 x 4 = 60 25 x 2 = 50 110 40 X 10 x 4 = 40 30 x 2 = 60 100 40 √ There are 10 cows and 30 chickens in the farm.
On a farm there are chickens and three-legged-cows. There are total of 64 heads and 147 legs. How many chickens are on the farm?
Suppose there are x chickens and y cows Then heads => x + y = 64 And Legs => 2x + 3y = 147 2*Heads: 2x +2y = 128 Subtract from Legs: 19 = y Substitute in Heads: x = 45 Answer: 45 chickens.
In a barn there are some chickens and pigs there are 11 heads and 36 legs how many chickens and pigs are there?
On this farm there would be a total of 18 cows. There would also be 18 chickens, combining to make 36 heads and 104 legs.
On a farm there are horses and chickens There are total of 131 heads and 448 legs How many horses are on the farm?
On a farm there are chickens and three-legged-cows. There are total of 49 heads and 130 legs. How many chickens are on the farm?
On a farm you have chickens and 3 legged cows you have 107 heads and 224 legs how many chickens do you have?
This can be done in your head: If all animals were cows there would be 321 legs. Every cow replaced by a chicken reduces this figure by one.The total reduction is 97 (321 - 224) so there are 97 chickens (and 10 cows)Check legs: (97 x 2) + (10 x 3) = 194 + 30 = 224. QED
When Farmer Fiona raises cows and chickens in all her animals have 20 heads and 70 legs?
Assuming that all of the animals are "normal" (no amputees, 2-headed mutations, etc.) : 15 cows (15 x 4 = 60 legs) plus 5 chickens (5 x 2 = 10 legs) gives a total of 20 heads and 70 legs.
