Question 1129355
16% = x
37% = 300 - x
0.16x + 0.37(300-x) = 0.22(300)
0.16x + 111 - 0.37x = 66
-0.21x = -45
x = 214.3 pounds of 16% have to be mixed with 300-214.3 = 85.7 pounds of 37% to make 300 pounds of 22% aluminum