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For his phone service, Jason pays a monthly fee of $19, and he pays an additional $0.05 per minute of use. The least he has been charged in a month is $75.10.

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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  1. 3 May, 22:55
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    The answer is 1,122 minutes per month.

    Given:

    monthly fee - $19

    additional - $0.05 per minute

    charged in a month - $75.10

    Req:

    number of minutes

    Sol:

    monthly fee + additional fee ≥ charged in a month

    19 + 0.05m ≥ 75.10

    0.05m ≥ 56.10

    m ≥ 1,122 minutes per month

    Jason used his phone service for 1,112 minutes in the span of one month
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