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Ralph sold brownies for ​$0.27 a piece in order to earn money to buy baseball cards. If the cards cost ​$1.35 per​ pack, and if Ralph had no money left over after buying​ them, what is the least number of brownies he must have​ sold?

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99(15) = 1.35x14.85 = 1.35x14.85/1.35 = 11
I think it is 15. I am not sure about the proper way to solve this....I just know that if he sold 15 brownies, he could buy 11 packs with exactly no change left over.
User Ramtin Gh
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