j8838
03.03.2021 •
Mathematics
Susan purchased a prepaid phone card for $20. Long distance calls cost 24 cents a minute using this card. Susan used her card only once to make a long distance call. If the remaining credit on her card is $15.44, how many minutes did her call last?
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Ответ:
3/5
first we find gcf for both numinator and dinominator do the gcf is 15
next we divide both by15
then 45÷15=3 and 75 ÷15=5
so the answer is 3/5 or 3:5