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OpenStudy (anonymous):
Ralph sold brownies for .63 cents a piece in order to earn money to buy baseball cards. If the cards cost 0.81 cents per pack, and if Ralph has no money left over after buying them, what is the least number of brownies he must have sold?
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OpenStudy (anonymous):
Can anybody help me?
OpenStudy (anonymous):
9 brownies, 9 * 0.63 / 0.81 = 7
OpenStudy (anonymous):
9 brownies 0.81* 9 /0.63 = 9
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