Question

jenny purchased a prepaid phone card for $30 . long distance calls cost 24 cents a minute using this card. jenny used her card only once to make a long distance call. if the remaining credit on her card is $20.16 , how many minutes did her call last

Answer 1

30 ( total card) - 20.16 (remaining credit)
30 - 20.16 = 9.84
9.84 divided by .24 (cents a minute)
9.84 / .24 =
41
Jenny's call lasted 41 minutes.

Answer 2

it would be 29 minutes on the dot