Mathematics, 02.12.2020 01:30 breanastone15

Christine purchased a prepaid phone card for $20. Long distance calls cost 18 cents a minute using this card. Christine used her card only once to make a long distance call. If the remaining credit on her card is $15.68, how many minutes did her call last?

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Christine purchased a prepaid phone card for $20. Long distance calls cost 18 cents a minute using t...

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