Question 142019
.04x+.03(8000-x)=275
.04x+240-.03x=275
.01x=275-240
.01x=35
x=35/.01
x=3500 invested @ 4%
8000-3500=4500 invested @ 3%
proof:
.04*3500+.03*4500=275
140+135=275
275=275