anonymous
  • anonymous
A cell phone plan has a monthly cost that is shown in the table below. What is the correct statement regarding the average rate of change during the 40-minute time of talk? Total minutes of talk time Monthly cost of cell phone 0 $19.95 10 $20.45 20 $20.95 30 $21.45 40 $21.95
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
@peachpi
anonymous
  • anonymous
@welshfella
welshfella
  • welshfella
I don't understand the question to be honest. Is it average rate of change or charge?

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More answers

anonymous
  • anonymous
The average rate of change is $0.50, meaning that for each minute of talk time, the monthly bill increases by $0.50. The average rate of change is $0.50, meaning that for every ten minutes of talk time, the bill increases by $0.50. The average rate of change is $0.05, meaning that for each minute of talk time, the monthly bill increases by $0.05. The average rate of change is $0.05, meaning that for every ten minutes of talk time, the bill increases by $0.05.
anonymous
  • anonymous
@welshfella
welshfella
  • welshfella
ok look at the last 2 costs 21.95 and 21.45 difference = $0.50 and difference in time is 10 minutes so?
anonymous
  • anonymous
B
welshfella
  • welshfella
yes
anonymous
  • anonymous
ok thanks
welshfella
  • welshfella
yw
welshfella
  • welshfella
Hold on - I'm not sure here. C could also be right as that is the rate per minute
welshfella
  • welshfella
sorry guy i'm not sure about this one . the average is usually the rate per unit of time which is a minute in this case. I would go for C but i'm not absolutely sure.

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