Erin has a $20 bill with which to buy coffee . If she buys 2 pounds of ground coffee at $4 per pound and spends the rest on gourmet coffee at $8 per pound how many pounds of gourmet coffe can she buy?
Since she already spent $8 for 2 pounds of the ground coffee, she now has $12 left so then she can only buy only 1 pound of gourmet coffee since she will only have $4 left after buying the first pound.
