Question 976936
x=the safer investment
148-x=riskier.  Units in thousands.

.10x+ 0.15(148-x)=18
.10x + (22.2-.15x)=18
-0.05 x=-4.2
x=84 or $84,000
the other is $64,000

84,000*10%=$8400
64,000*15%=$9600
total=$18,000