Question 70297
.06X+.05(9000-X)=510
.06X+450-.05X=510
.01X=510-450
.01X=60
X=60/.01
X=6000 INVESTED @ 6%
9000-6000=3000 INVESTED @ 5%
PROOF
.06*6000+.05*3000=510
360+150=510
510=510