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Karen purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Karen used her card only once to make a long distance call. If the remaining credit on her card
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Karen purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Karen used her card only once to make a long distance call. If the remaining credit on her card is $24.08, how many minutes did her last call last?

User Grumpy
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30-24.08=5.92, 5.92/.16=37 minutes

User Chris Subagio
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