Question 210918
3.45x+2.15(80-x)=2.75*80
3.45x+172-2.15x=220
1.3x=220-172
1.3x=48
x=48/1.3
x=36.923 pounds of 3.45 tea.
80-36.923=43.077 pounds of 2.15 tea.
Proof
3.45*36.923+2.15*43.077=220
127.38+92.6156=220
200~200