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MathematicsMathematics
26 July, 06:58

Susan purchased a prepaid phone card for $ 20. Long distance calls cost 23 cents a minute using this card. Susan used her card only once to make a long distance call. If the remaining credit on her card is $ 13.79, how many minutes did her call last?

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  1. 26 July, 07:03
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    27 minutes long because 23 multiplied by 27 is 621 and 20 subtracted by 13.79 is 6.21 and u have to find how much cents add up to that
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Home » Mathematics » Susan purchased a prepaid phone card for $ 20. Long distance calls cost 23 cents a minute using this card. Susan used her card only once to make a long distance call. If the remaining credit on her card is $ 13.
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