Problema Solution
Amy purchased a prepaid phone card for $30. Long distance calls cost 12
cents a minute using this card. Amy used her card only once to make a long distance call. If the remaining credit on her card is $26.64, how many minutes did her call last?
Answer provided by our tutors
let 'x' represent the number of minutes of the call
30 - 0.12x = 26.64
by solving we find:
x = 28 min
click here to see the step by step solution of the equation:
Amy's call lasted 28 minutes.