Question 93212
1.70X+1.50(40-X)=1.55*40
1.70X+60-1.50X=62
.20X=62-60
.20X=2
X=2/.20
X=10 POUNDS OF 1.70 COFFEE 
40-10=30 POUNDS OF 1.50 COFFEE
PROOF
1.70*10=1.50*30=62
17+45=62
62=62