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Every person at a party of twenty eight people said hello to each of the other people at the party once. How many "hellos" were said at the party?
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A farmer counts 70 heads and 200 legs how many chickens and pigs does he have?
Let c represent the number of chickens and p represent the number of pigs.Since chickens and pigs have one head each, 70 heads = c + p.Since chickens have 2 legs and pigs have 4 legs, 200 legs = 2c + 4p.Subtracting twice the first equation (140 = 2c + 2p) from the second, we get60 = 2porp = 30 pigsRewriting the first equation as c = 70 - p, we get c = 40 chickens.
If A collection of chickens and pigs has a total of 70 legs and 26 heads How many chickens are there?
C+P=26 2C+4P=70 Therefore C=26-P Therefore 2(26-P)+4P=70 Therefore 52-2P+4P=70 Therefore 52+2P=70 Therefore 2P=18 Therefore P=9 Therefore C+9=26 Therefore C=17 There are 17 chickens.
In all farmer brown has 12 chickens and pigs in all the animals have 28 legs how many chickens and pig dose farmer brown have?
chickens chickens
If there are 143 heads and 478 legs how many chickens and pigs are there?
Take P to be the number of pigs and C to be the number of chickens. Because both anamals have a head, the sum of C and P is 143, or C + P = 143 Because a chicken contributes 2 legs and a pig contributes 4, C times 2 plus P times 4 equals the total number of legs, or 2C + 4P = 478 divide this equation by 2 to get C +2P = 239 Subtract the first equation from this one P = 96 plug this into the first equation C + 96 = 143 C = 47 96 Pigs and 47 chickens
There are 13 animals in the barn Some are chickens and others are pigs There are 40 legs in all How many of each animal are there?
2c + 4p = 40 c + p = 13 so 2c + 2p = 26 so 2p =14 p = 7, c = 6 Check: 7 pigs = 28 legs, 6 chickens = 12 legs, total 40 legs. QED
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.
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 chickens and horses There are total of 122 heads and 318 legs How many chickens are on the farm?
85 chickens
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 chickens and horses there are total of 70 heads and 196 legs How many chickens are on the farm?
There are 42 chickens in the farm.
On a farm there are chickens and horses There are total of 59 heads and 190 legs How many chickens are on the farm?
there are 36 horses and 23 chickens.........
The teacher noticed that there were a total of 100 heads and 270 legs how many chickens were there how many pigs were there?
35 pigs, 65 chickens
In a big box there are 100 legs and 49 heads how many chickens and pigs are there inside the box?
48 chickens 1 pig
On a farm there are horses and chickens there are total of 71 heads and 264 legs how many horses are on the farm?
There are 61 horses and 10 chickens on the farm.
On a farm there are horses and chickens there are a total of 27 heads and 92 legs how many horses are on the farm?
27
On a farm there are horses and chickens There are total of 107 heads and 392 legs How many horses are on the farm?
If all were horses there would be 428 legs. The shortfall of 36 legs represents 18 chickens so there are 89 horses.
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.
