Question 428387
Let x = the number of pounds of soybean meal
Then 240-x = the number of pounds of cornmeal
Then we can write:
0.12x + 0.06(240-x) = 0.10*240
0.06x = 9.6 -> x = 160
So 160 pounds soybean, 80 pounds cornmeal
Check:
0.12*160 = 19.2
0.06*80 = 4.8
Total protein = 19.2 + 4.8 = 24 pounds out of 240 pound mixture = 10% protein