Math
posted by lia mowin .
I need SUPER help! A famer has to buy 100 animals, but can only spend exactly $5.00. He has to buy at least on of each animal a chcken for 0.01$, a cow for 0.10$ and a horse for 0.50$!!!! PLease HElp IT means so much I need it by Midnight tonight or else i don't pass my clas :(

Math 
Reiny
number of chicken  x
number of cows  y
number of horses  100xy
.01x + .10y + .50(100xy) = 5
times 100
x + 10y + 50(100xy) = 500
x+10y+500050x50y = 500
49x40y = 4500
49x + 40y = 4500
We need only integer solutions here,
after a few trial and errors I got
x = 60
y = 39
so 60 chickens  .60
39 cows and 3.90
1 horse 0.50 for a total of $5.00
Is this from an 1850 textbook? 
Math 
lia mowin
yes my teacher assigned it to my seventh grade class, thank you so much for your time!! =)
Respond to this Question
Similar Questions

math
a farmer bought chickens, goats and sheep. He bought 100 animals and spent $100. how much of each animal did he buy a farmer bought chickens, goats and sheep. He bought 100 animals and spent $100. how much of each animal did he buy … 
math
you have to buy 100 animals. roosters cost 5.00, hens cost 1.00 and chicks cost .05cents. how many of each animal can I buy? 
Math
I have $100.00 dollars to spend to buy 100 animals. Cows cost $50.00 each, sheep cost $3.00 each, pigs cost $2.00 each and chicks cost $0.10 each. How many of each do I need to buy to spend $100.00 dollars and have 100 aninals? 
math
A farmer has $100.he has to buy 100 farm animals.He has to spend exactly $100 and get exactly 100 farm animals. Whats a solution for this problem 
math
You have exactly 100 dollars to buy 100 animals you must buy at least one of each of the following animals Chickens=50 cents each Pigs=3.00 each Cows=10.00 each 
maths
I need to buy 100 farm animals with $100.. I need to have brought at least on of each animal. Roosters are $5ea, Hens $3ea and chickens 3 for $1. Can anyone help? 
math
i am a farmer he has $100 and he has to buy one hundred animals there is a chicken for $0.50 a goat for 3.50 and a sheep for $5 how many of each animal does he have to buy? 
Math
a horse is $5 a cow is $3 & chickens r $.50 ea. now buy 100 animals 4 exactly $100 
math
The gardener went to the market to buy 100 animals for a total of IDR 1.000.000. If the price of cow IDR. 50,000 /cow and goat IDR 10,000 /goat , rabbit IDR 5000 /rabbit , how many of each kind of animal which can he buy ? 
Math
A farmer has 100.00 and he has to buy 100 budgies blue ones cost 10.00 green ones cost 3.00 and yellow cost .50 he has to buy at least 2 yellow and he can only spend axactly 100.00. This is a fifth grade math problem. I am a grandma …