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29 February, 18:57

For his phone service, Deon pays a monthly fee of $18

, and he pays an additional $0.04

per minute of use. The least he has been charged in a month is $61.28

.

What are the possible numbers of minutes he has used his phone in a month?

Use m for the number of minutes, and solve your inequality for

m.

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Answers (1)
  1. 29 February, 19:21
    0
    (61.28-18) / 0.04 = 1082 minutes.

    So deon spends at least 1082 minutes on his phone.
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