Question 122993
2 UNKNOWNS IN 1 EQUATION IS NOT SOLVEABLE.
WHAT YOU NEED IS:
.09X+.06(12,000-X)=855
.09X+720-.06X=855
.03X=855-720
.03X=135
X=135/.03
X=$4,500 AMOUNT INVESTED @ 9%.
12,000-4500=&7,500 AMOUNT INVESTED @ 6%.
PROOF
.09*4,500+.06*7,500=855
405+450=855
855=855