Question 198298
.085x+.064(8,000-x)=575
.085x+512-.064x=575
.021x=575-512
.021x=63
x=63/.021
x=3,000 ans. amount invested @ 8.5%
8,000-3,000=5,000 ans.amount invested @ 6.4%
Proof:
.085*3,000+.064*5,000=575
255+320=575
575=575