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31 October, 21:27

Jane purchased a prepaid phone card for

$30

. Long distance calls cost

9

cents a minute using this card. Jane used her card only once to make a long distance call. If the remaining credit on her card is

$28.83

, how many minutes did her call last?

+4
Answers (1)
  1. 31 October, 23:29
    0
    She used $1.17 to make the phone call, since 30 - 28.83 is 1.17.

    If it costs 9 cents per minute, we can simpy divide 1.17 by 9, which gives us 0.13. That means that her phone call lasted 13 minutes.
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