Question 113986
.14X+.13(20,000-X)=2,720
.14X+2600-.13X=2,720
.01X=2,720-2,600
.01X=120
X=120/.01
X=$12,000 IS THE AMOUNT INVESTED @ 14%.
PROOF:
.14*12,000+.13(20,000-12,000)=2,720
1,680+.13*8,000=2,720
1,680+1,040=2,720
2,720=2,720