adriananana adriananana
  • 23-06-2017
  • Mathematics
contestada

A cell phone plan charges a $40 base fee. If the total cost of talking 20 minutes is $41, what is the rate of change of the cost per minute talked?

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joleeamarie1234
joleeamarie1234 joleeamarie1234
  • 28-06-2017
2.05 
Just divide 41 from 20
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