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Mathematics, 16.07.2019 06:30 milkshakegrande101
Mario bought $5 worth of stamps at the post office. he bought ten more 6-cent stamps than 10-cent stamps. the number of 8-cent stamps was three times the number of 10-cent stamps. he also bought two 20-cent stamps. how many of each kind of stamp did he purchase?
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Mario bought $5 worth of stamps at the post office. he bought ten more 6-cent stamps than 10-cent st...
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