Question 464664
5200 = 0.14x + (50,000 - x)0.09
==> 5200 = 0.14x + 4500 - 0.06x
==> 700 = 0.05x
==> x = 14,000, the amount that should be invested in 14%, and 
50,000 - x = 36,000, the amount that should be invested in 9%.