Question 83052
.15*96=.13x+.19(96-x)
14.4=.13x+18.24-.19x
14.4-18.24=.13x-.19x
3.84=.06x
x=3.84/.06
x=64 oz. of 13% alloy is needed.
96-64=32 oz. of 19% alloy is also needed.
proof
.15*96=.13*64+.19*32
14.4=8.32+6.08
14.4=14.4