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vin17 10-11-2006 10:04 PM

Math homework help
 
Any help is greatly appreciated...

Edit: It is (geometric) linear programming

There are three 'nutrients': A, B and C

The minimum amount of units required of each are 160, 200 and 80 respectively.

There are two brands of products containing these nutrients...
Product Alpha costs $8/bag and contains 3 units of A, 5 of B and 1 of c.
Product Beta costs $6/bag and contains 2 units of A, B and C each.

In order to minimize costs while still maintaining the amount of nutrients, what combination of Alpha and Beta should be purchased (you do not need to solve it, only construct the math model ie. objective function and constraints).
Note: I have already done similar questions with the exception that there wasn't multiple products and prices involved.

theben 10-11-2006 11:06 PM

Re: Math homework help
 
disclaimer--its been several years since i've done LP formulation. this may be wrong.

also, what major are you? please indulge my curiosity.

min: costs

let x1 = bags of alpha
x2= bags of beta

min 8 x1 + 6 x2

S.T.

A>=160
B>=200
c>=80

A = 3 x1 + 2 x2
B = 5 x1 + 2 x2
C = 1 x1 + 2 x2

all dec vars non neg.

apply simplex algorithm or plug that sucker into lingo and you are done

lippy 10-11-2006 11:13 PM

Re: Math homework help
 
Okay, I'm trying to work through it. This is a very annoying question that shouldn't be hard.

vin17 10-11-2006 11:29 PM

Re: Math homework help
 
[ QUOTE ]
also, what major are you? please indulge my curiosity.

[/ QUOTE ]
Commerce.

Thythe 10-11-2006 11:35 PM

Re: Math homework help
 
[ QUOTE ]
disclaimer--its been several years since i've done LP formulation. this may be wrong.

also, what major are you? please indulge my curiosity.

min: costs

let x1 = bags of alpha
x2= bags of beta

min 8 x1 + 6 x2

S.T.

A>=160
B>=200
c>=80

A = 3 x1 + 2 x2
B = 5 x1 + 2 x2
C = 1 x1 + 2 x2

all dec vars non neg.

apply simplex algorithm or plug that sucker into lingo and you are done

[/ QUOTE ]

This is right, but just cut out the middle man and say
3 x1 + 2 x2 >= 160
5 x1 + 2 x2 >= 200
1 x1 + 2 x2 >= 80

Then you don't need A, B, or C.

Velocity 10-12-2006 12:08 AM

Re: Math homework help
 
what is a commerce major exactly?

silkyslim 10-12-2006 12:15 AM

Re: Math homework help
 
im drunk and dont own paper and pencil but shouldnt this be solved by a simple system of equations?

grando 10-12-2006 04:00 AM

Re: Math homework help
 
[ QUOTE ]
what is a commerce major exactly?

[/ QUOTE ]

marketing/accounting/operations management/finance/general business/human resource management/I'm probably missing a couple

vin17 10-12-2006 08:15 AM

Re: Math homework help
 
[ QUOTE ]
[ QUOTE ]
what is a commerce major exactly?

[/ QUOTE ]

marketing/accounting/operations management/finance/general business/human resource management/I'm probably missing a couple

[/ QUOTE ]
I'm in a Canadian University, so I don't hear the term 'major' that much - if at all, but anyways...I am currently an undergrad in a Bac. of Commerce program. The first and second years are mostly intro courses before specialization begins in third year.

FWIW, I would like to go into either accounting or finance.

Scotty. 10-12-2006 01:27 PM

Re: Math homework help
 
[ QUOTE ]
[ QUOTE ]
[ QUOTE ]
what is a commerce major exactly?

[/ QUOTE ]

marketing/accounting/operations management/finance/general business/human resource management/I'm probably missing a couple

[/ QUOTE ]
I'm in a Canadian University, so I don't hear the term 'major' that much - if at all, but anyways...I am currently an undergrad in a Bac. of Commerce program. The first and second years are mostly intro courses before specialization begins in third year.

FWIW, I would like to go into either accounting or finance.

[/ QUOTE ]

You don't happen to be taking a UBC BComm do you?


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