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24 January, 06:13

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

A.) The average rate of change is $0.50, meaning that for each minute of talk time, the monthly bill increases by $0.50.

B.) The average rate of change is $0.50, meaning that for every ten minutes of talk time, the bill increases by $0.50.

C.) The average rate of change is $0.05, meaning that for each minute of talk time, the monthly bill increases by $0.05.

D.) The average rate of change is $0.05, meaning that for every ten minutes of talk time, the bill increases by $0.05.

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Answers (1)
  1. 24 January, 06:25
    0
    The answer would be B The average rate of change is $0.50, meaning that for every ten minutes of talk time, the bill increases by $0.50.
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