rosie69909 rosie69909
  • 16-05-2024
  • Mathematics
Answered

Suppose that the credit remaining on a phone card (in dollars) is a linear function of the total calling time (in minutes). When graphed, the function gives a line with a slope of -0.14. See the figure below. There is $28.36 in credit remaining on the card after 24 minutes of calls. How much credit will there be after 30 minutes of calls?



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