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MathematicsMathematics
15 October, 07:42

Lucy purchased a prepaid phone card for $15 Long distance calls cost 16 cents a minute using this card. Lucy used her card only once to make a long distance call. If the remaining credit on her card is $10.52, how many minutes did her call last?

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  1. 15 October, 08:07
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    I think you do $15 x 16 cents = 900minutes / 16 cents = 60 minutes.

    And then do $10.52 x 16cents = 168.32

    Subtract 900-168.32 = 731.68minutes / 16cents = 45.73 minutes not used

    60minutes - 45.73 = 14.27min used.

    Sorry if this isnt correct.
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Home » Mathematics » Lucy purchased a prepaid phone card for $15 Long distance calls cost 16 cents a minute using this card. Lucy used her card only once to make a long distance call. If the remaining credit on her card is $10.52, how many minutes did her call last?
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