Question 702402
ASSUMING THE RATES ARE ANNUALLY THEN:
.12X+.09(6300-X)=600
.12X+567-.09X=600
.03X=600-567
.03X=33
X=3/.03
X=$1100 AMOUNT INVESTED @ 12%.
6300-1100=$5200 AMOUNT INVESTED @ 9%.
PROOF:
.12*1100+.09*5200=800
132+468=600
600=600