<PRE><B>Question 842947</B>
x for grams of milk(soy) and y for grams of vegetables.


Account for carbohydrates:(0.005)x+(0.14)y=50
5x+140y=50000
x+28y=10000


Account for protein:  (0.030)x+(0.030)y=20
3x+3y=2000


You may want to try adjustment of these for use of the Elimination Method, the system being:
----------------------
x+28y=50000
----------------------
3x+3y=2000
----------------------



3x+84y=300000
-
3x+3y=2000


81y=300000-2000=298000
y=298000/81
y=3679 grams of vegetables  (probably wrong)


x+28y=50000
x=50000-28y
x=50000-28(3679)
x=-53012 Which obviously makes no sense.


Either I made a mistake which I have not found (after rechecking the whole solution once) or one of your given datum is wrong.  This would otherwise be a reasonably simple two-variable linear system exercise.</PRE>