Question 1049881
Let  x represent the amount of the $0.89 seed
MIX
.89x + .49(20lb-x) = .73(20lb)
.40x = .24(20lb)
x = .24(20lb)/.40 = 12 lb, the amount of the $0.89 seed.  8lb {{{20-12}}} $0.49 seed