i have a math qustion. please help me!?
ok a farmer has 0. the farmer wants to buy chickens, cows,and pigs.
~chickens are 50 cents
~pigs are
~cows are
but you have to spent exactly 0 and have exactly 100 animals
7 Responses
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13 Mar 2010
sair
13 Mar 2010
.5c +3p + 10w= 100
c+p+w= 100
Dave A
13 Mar 2010
a = chickens
b = pigs
c = cows
The total price is $100.
.5a + 3b + 10c = 100
And he buys 100 animals total.
a + b + c = 100
Are you sure you’re not missing information? To solve a system of three variables, you need three different equations.
ilovelucas
13 Mar 2010
you can buy 10 cows
you can buy 200 chickens
you can buy 5 cows and 10 chickens
nozar nazari
13 Mar 2010
You have two equation & 3 unknowns???????
kwondoaxprincess
13 Mar 2010
do an equation.
0.50x + 3x + 10x = $100
Ax + Bx + Cx = 100 animals.
x equals the amount of animal, a equals chickens, b equals pigs,and c equals cows.
and i forgot the rest
Dave
13 Mar 2010
The farmer needs to get 94 chickens, 1 pig and 5 cows. The solution to this problem can be found through trial and error or with the use of a maximisation formula, since the numbers need to be whole numbers, ie the farmer cannot buy half a pig.
x+y+z=100
50x+300y+1000z=100
Solve for three variables, and you have the answer.