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Mary purchased a prepaid phone card for $15 . Long distance calls cost 7 cents a minute using this card. Mary used her card only once to make a long distance call. If the remaining credit on her card is
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Mary purchased a prepaid phone card for $15 . Long distance calls cost 7 cents a minute using this card. Mary used her card only once to make a long distance call. If the remaining credit on her card is $13.46 , how many minutes did her call last?

User Narendran Parivallal
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4 votes
22 the call lasted minutes
User Jonathanasdf
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