Question 392697
.04x+.06(x+250)=90
.04x+.06x+15=90
.10x=90-15
.10x=75
x=75/.10
x=$750 amount invested @ 4%
750+250=$1,000 invested @ 6%
Proof:
.04*750+.06*1,000=90
30+60=90
90=90