SOLUTION: Translate to a system of equations and solve. Julia and her husband own a coffee shop. They experimented with mixing a City Roast Columbian coffee that cost $7.80 per pound with F

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Question 1191390: Translate to a system of equations and solve.
Julia and her husband own a coffee shop. They experimented with mixing a City Roast Columbian coffee that cost $7.80 per pound with French Roast Columbian coffee that cost $8.10 per pound to make a 20 pound blend. Their blend should cost them $7.86 per pound. How many pounds of each type of coffee should they buy?
City Roast Columbian____lb
French Roast Columbian____lb
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
y, pounds of the $8.10 per pound coffee
20-y, pounds of the $7.8 per pound coffee

8.1y%2B7.8%2820-y%29=7.86%2A20--------solve for y and evaluate 20-y.