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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

Respuesta :

olemakpadu
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.

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