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

Algebra ->  Coordinate Systems and Linear Equations -> 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      Log On


   

Question 177152: 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?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
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?
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It was $30, now it's $24.05, so she used $5.95 of it.
595cents/17 cents/min = 35 minutes.
17 cents/minute is a bad deal.