Question 696763
.01X+.50(8-X)=.20*8
.01X+4-.50X=1.6
-.49X=1.6-4
-.49X=-2.4
X=-2.4/-.49
X=4.9 OZ. OF 1% ALCOHOL IS USED.
8-4.9=3.1 OZ. OF 50% ALCOHOL IS USED.
PROOF:
.01*4.9+.50*3.1=.20*8
.049+1.1.55=1.6
1.6=1.6