For his phone service, tony pays a monthly fee of $27, and he pays an additional $0.04 per minute of use. the least he has been charged in a month is $70.44. 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.

For this case we have as a fact that Tony pays monthly $ 27 for telephone service, in addition to $ 0.04 per minute of additional use.

If "M" represents the number of minutes used by Tony in a month we have:

If the minimum that has been charged in a month is $ 70.44 then:

Clearing "M" we have:

We subtract 27 on both sides of the inequality:

We divide by 0.04 on both sides of the inequality:

Tony uses at least 1086 minutes per month.

Tony uses at least 1086 minutes per month.

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