SOLUTION: Two pounds of coffee and 3 lb of butter cost $4.20. A month later the price of coffee advanced 10% and that of butter 20%, making the total cost of a similar order $4.86. Determine
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Question 521534: Two pounds of coffee and 3 lb of butter cost $4.20. A month later the price of coffee advanced 10% and that of butter 20%, making the total cost of a similar order $4.86. Determine the original cost of a pound of each.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
2c+3b=4.20
2*1.1*c+3*1.2*b=4.86
b=.80
c=.90
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