SOLUTION: A store is having a sale on jelly beans and trail mix. For 3 pounds of jelly beans and 5 pounds of trail mix, the total cost is $17. For 9 pounds of jelly beans and 7 pounds of tra

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Question 1156270: A store is having a sale on jelly beans and trail mix. For 3 pounds of jelly beans and 5 pounds of trail mix, the total cost is $17. For 9 pounds of jelly beans and 7 pounds of trail mix, the total cost is $37. Find the cost for each pound of jelly beans and each pound of trail mix.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
j jelly bean price
x trail mix price

system%283j%2B5x=17%2C9j%2B7x=37%29

You might try multiplying first equation by 9, and then eliminate the j terms to quickly find x.