Soybean milk is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed together to get a 350-lb mixture that is 12% protein.
Soybean milk is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed together to get a 350-lb mixture that is 12% protein. @Mathematics

Question

Soybean milk is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed together to get a 350-lb mixture that is 12%  protein.  
Soybean milk is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed together to get a 350-lb mixture that is 12%  protein.  @Mathematics

anonymous · Answer

let x=16% protein     and y=9% protein
16%x+ 9%y=12%(350 lb)             
0.16x+.09y=0.12(350)          1st equation
x+y=350               2nd equation

solving for x and y by substitution or elimination method
x= 150 lb           and y=200 lb

anonymous · Answer

Thank you... I couldn't figure out the equations :D I suck at translating word problems