http://www.stormsupplements.com/grams-pure/
What amounts of 60% pure silver and 65% pure silver should be mixed to obtain 14 grams of 64% pure silver?
60% silver = ____ grams
65% silver = ____ grams
0.6 x + 0.65 (14-x) = 0.64 * 14
-0.05x + 9.1 = 8.96
x = (8.96 – 9.1 ) / (-0.05) = 2.8
14-2.8 = 11.2
60% silver = 2.8 grams
65% silver = 11.2 grams
2 GRAMS OF PURE KUSH