Question 208104
.04x+.0225(33,000-x)=970
.04x+742.5-.0225x=970
.0175x=970-742.5
.0175x=227.5
x=227.5/.0175
x=$13,000 invested @ 4%
33,000-13,000=$20,000 invested @ 2.25%
Proof:
.04*13,000+.0225*20,000=970
520+450=970
970=970