Question

A farmer grows three crops, corn oats, and soybeans, which he mixes together to feed his
cows and pigs. At least 40% of the feed mix for the cows must be corn. The feed mix for
the pigs must contain at least twice as much soybeans as corn. He has harvested 1000
bushels of corns, 500 bushel of oats, and 1000 bushels of soybeans. He needs 1000
bushels of each feed mix for his livestock. The unused corn, oats and soybeans can sold
for $4, $3.50, and $3,25 a bushel, respectively (thus, these amounts also represent the cost
of the crops used to feed the livestock.)

Answer 1

How many bushels of each crop should be used in
each feed mix in order to produce sufficient food for the livestock at minimal cost?

Answer 2

its a BIG M METHOD problem

Answer 3

i just need the SUBJECT TO CONSTRAINTS and the MAXIMIZE or MINIMIZE.. please

Answer 4

i cant get it totally how to solve it.. let me try little by little...
for cows 40% of total feed must be corn... he need 1000 of each bushel makes 3000 in total.. so corn use is 40% of total
x = 1200 bushels of corn.

Answer 5

ok... thanks for the effort. :)

Answer 6

let me know if i go some where wrong...
now it says for pigs oats are use twice as much as corn.
corn was used 1200 so oats would be 2400

Answer 7

sorry not oats .. was soyabeans

Answer 8

yeah..

Answer 9

seems like some information is missing from here

Answer 10

no, they are not.

Answer 11

still there?

Answer 12

yes still working on it...

Answer 13

ok does he use 3000 on his whole live stock i mean (cow +pigs) or just one of it?

Answer 14

ok. :)

Answer 15

just one of it

Answer 16

whole livestock, rather

Answer 17

means 3000 on cow + pigs?

Answer 18

yeah

Answer 19

i search this on net: min 4(corn_1+corn_2) + 3.5 (oats_1+oats_2) + 3.25 (soybean_1+ soybean_2), but i don't understand

Answer 20

lol i dont get this either..

Answer 21

but you know about big m method?

Answer 22

yes i kinda did it days back..

Answer 23

oh, ok

Answer 24

is it correct? maximize -P= -4x1+3.50x2+3.25x3?

Answer 25

how come u have got this.. ?

Answer 26

well,its my answer

Answer 27

hmm not even getting any near :( sorry