Problema Solution

C and k are selling lemonade. It costs $.10 to make a cup, they are going to sell each cup for $.25. What is the least number of cups of lemonade they need to sell in order to collect $10.00 more than they spend?

Answer provided by our tutors

let x be the number of cups they need to sell


0.25x >= 10 + 0.10x


by solving we find


x >= 66.67


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they need to sell at least 67 cups of lemonade.