Question 108049
.11X+.09(32,000-X)=3,200
11X+2880-.09X=3,200
.02X=3,200-2,880
.02X=320
X=320/.02
X=16,000 AMOUNT INVESTED @ 11%
32,000-16,000=16,000 AMOUNT INVESTED @ 9%
PROOF
.11*16,000+.09*16,000=3,200
1,760+1,440=3,200
3,200=3,200