SOLUTION: Lorena bought 10 packs of styrofoam cups for the graduation dance. A pack of fifty 12-oz cups costs $1.80 and a pack of fifty 16-oz cups costs $2.40. Lorena paid a total of $21.60

Question 4852: Lorena bought 10 packs of styrofoam cups for the graduation dance. A pack of fifty 12-oz cups costs $1.80 and a pack of fifty 16-oz cups costs $2.40. Lorena paid a total of $21.60 including tax. How many packs of each size cup did she buy?
Answer by lotanez(23) (Show Source): You can put this solution on YOUR website!
total of 10 packs of cups were bought
she paid $21.60
8(1.80) + 3(2.40) = $14.40 + $7.20 = $21.60
she bought 8 packs of 12oz cups and 3 packs of 16oz cups

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