Question 1118485
0.15x + 0.12(13,500 - x) = 0.14(13,500)
0.15x + 1,620 - 0.12x = 1,890
0.03x = 270
x = 9,000
He should invest 9,000 at 15% and 13,500-9,000 = 4,500 at 12% to get an average return on both investments of 14%