Question 1047034
That's fine as far as you have gone.
make the two add to equal $1050.
.04x+.06(20000-x)=$1050
.04x+1200-.06x=1050
-,02x=-150
x=$7500 @4% ($300 a year)
20000-x=$12500@6%=$750 a year.  They add to $1050