Question 71713
.07X+.03(20000-X)=1200
.07X+600-.03X=1200
.04X=1200-600
.04X=600
X=600/.04
X=15000 ANSWER FOR THE AMOUNT INVESTED @ 7%
20000-15000=5000 ANSWER FOR THE AMOUNT INVESTED @ 3%
PROOF
.07*15000+.03*5000=1200
1050+150=1200
1200=1200