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Kala purchased a prepaid phone card for S15. Long distance calls cost 24 cents a minute using this card. Kala used her card only once to make a long
distance call. If the remaining credit on her card is $5.64, how many minutes did her call last?

Respuesta :

10n31y

[tex]15 - x = 5.64[/tex]

[tex]15 - 5.64 = x[/tex]

[tex]9.36 = x[/tex]

//

[tex]9.36 \div 0.24 = 39[/tex]

her call lasted 39 minutes.

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