Question 1050541
10x+2y=38, where x is the dollar cost of cinnamon and y the dollar cost of the spice.
16x+8y=80
multiply the top by -4
-40x-8y=-152
16x+8y=80.  Add them and y is eliminated.
-24x=-72
x=$3
go to first equation and 30+2y=38, substituting $3 for x.
2y=8
y=$4.
Check using second equation.
48+32=80
Cinnamon is $3 per pound
Spice is $4 per pound.