SOLUTION: Lena purchased a prepaid phone card for $30. Long distance calls cost 17 cents a minute using this card. Lena used her card only once to make a long distance call. If the remaining
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Question 177175: Lena purchased a prepaid phone card for $30. Long distance calls cost 17 cents a minute using this card. Lena used her card only once to make a long distance call. If the remaining credit on her card is $24.05, how many minutes did her call last?
You can put this solution on YOUR website! Lena has used $30-$24.05 = $5.95 of the total value of the card.
The question is...how many minutes of long-distance call can she get from $5.95 at $0.17 per minute.
To find out, you will need to divide $5.95 by $0.17, so...
Lena's long-distance call lasted 35 minutes.
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