Question 905836
a+b=10,
2.45*a+2.10*b=2.20*10
a=10-b
2.45*(10-b)+2.1*b=22.0
24.5-2.45b+2.1*b=22.0
-0.35*b=-2.5
b=7.14285714
a=10-b
a=2.85714286 lb. at $2.45 b=7.14285714 lb. at $2.10
check
2.45*2.85714286+2.1*7.14285714=2.2*10
7.0+15.0=22.0
22.0=22.0
ok