Mathematics, 25.01.2021 03:10, MrSavannahCat

The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 24 minutes of calls is $21.40, and the remaining credit after 35 minutes of calls is $1975. What is the remaining credit after 38 minutes of calls?
Remaining
credit
(in dollars)
3:10
?
Calling time
(in minutes)

Answers: 1

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The credit remaining on a phone card (in dollars) is a linear function of the total calling time mad...