A store is having a sale on jelly beans and trail mix. For 6 pounds of jelly beans and 2 pounds of trail mix, the total cost is $20. For 3 pounds of jelly beans and 5 pounds of trail mix, the total cost is $23. Find the cost for each pound of jelly beans and each pound of trail mix.
6 j + 2 t = 20
3 j + 5 t = 23 Multiply this equation by -2
-6 j -10 t = -46 add to top equation
- 8t = - 26
t = 3.25 6 j + 2 (3.25) = 20 j = $ 2.25