Question 1066871
x=pecans, y=cashews
x+y=100
1.12x+0.60y=100*0.73=73
x+y=100
x=100-y
1.12(100-y)+0.60 y=73
112-1.12y+0.60y=73
-0.52y=-39
y=75 pounds of cashews @0.60=$45
x=25 pounds of pecans @1.12=$28
Total $73.
You set it up fine.  I did substitution, but you could do elimination.