SOLUTION: Latoya purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Latoya used her card only once to make a long distance call. If the remai

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Latoya purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Latoya used her card only once to make a long distance call. If the remai      Log On

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Question 188943: Latoya purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Latoya used her card only once to make a long distance call. If the remaining credit on her card is $26.48, how many minutes did her call last?
Answer by jonvaliente(64) About Me  (Show Source):
You can put this solution on YOUR website!
Let c = no of minutes Latoya called long distance
To find out how much she spent for her call:
30-26.48=3.52
0.16*c=3.52
Dividing both sides by 0.16, we get
c = 22
Latoya's call lasted for 22 minutes