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19 August, 14:55

Linda purchased a prepaid phone card for $30. Long distance calls cost 17 cents a minute using this card. Linda used her card only once to make a long distance

call. If the remaining credit on her card is $26.09, how many minutes did her call last?

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  1. 19 August, 15:18
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    23 minutes

    Step-by-step explanation:

    First, take away $26.09 from $30. This will show you how much was spent on the call. You should get $3.91.

    Next, it may be easier to convert this total all to cents. So 100 cents in every dollar ... 100 cents times 3 = 300 cents. Then add the other 91 cents to get a total of 391 cents.

    Then, you need to divide 391 cents by 17 to get the minutes. And you'll get 23 minutes!
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