Question 114555
.04*4000+.055*X=.045(4000+X)
160+.055X=180+.045
.055X-.045X=180-160
.01X=20
X=20/.01
X=2000 AMOUNT INVESTED @ 5.5%.
PROOF:
.04*4000+.055*2000=.045(4000+2000)
160+110=.045*6000
270=270