soybean meal is 12% protein; cornmeal is 6% protein.How many pounds of each should be mixed together in order to get 240-lb mixture that is 10% protein%

How many pounds of the cornmeal should be in the mixture?_____pounds

How many pounds of the soybeans meals should be in the mixture?______pounds

2 answers

Try this.
Let S = pounds of soy bean meal.
Let C = pounds of corn meal.
so one equation is
S + C = 240

The other equation is
0.12S + 0.06S = 0.1*240
Solve the two equations for the two unknowns.
so the answer would be
s=44lbs
c=4.09lbs