171k views
3 votes
lashonda purchased a prepaid phone card for $20 . long distance calls cost 18 cents a minute using this card. lashonda used her card only once to make a long distance call. if the remaining credit on her card is $12.08 , how many minutes did her call last

User Scharron
by
8.5k points

1 Answer

1 vote
Let the number of minutes be = x.

Cost per minute = 18 cents = 0.18

Amount for last call = $20 - $12.08 = $7.92

Number of minutes = Amount / Cost per minute

= 7.92 / 0.18

= 44

Call lasted 44 minutes.
User Jatin Kumar
by
7.9k points