Mai purchased a prepaid phone card for $25. Long distance calls cost 19 cents a minute using this card. Mai used her card only once to make a long distance call. If the remaining credit on her card is

Mai purchased a prepaid phone card for $25. Long distance calls cost 19 cents a minute using this card. Mai used her card only once to make a long distance call. If the remaining credit on her card is $22.34, how many minutes did her call last?

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Mai purchased a prepaid phone card for $25. Long distance calls cost 19 cents a minute using this card. Mai used her card only once to make a long distance call. If the remainin…

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