Each month, a phone company charges $30 for 500 minutes of talk time plus $0.45 for each additional minute. Write an expression to show the

Question

Each month, a phone company charges $30 for 500 minutes of talk time plus $0.45 for each additional minute. Write an expression to show the cost of the monthly bill.

in progress 0
Alexandra 2 weeks 2021-10-04T11:04:31+00:00 1 Answer 0

Answers ( )

    0
    2021-10-04T11:06:28+00:00

    Answer:

      30 +0.45(m -500) . . . . for m > 500

    Step-by-step explanation:

    If talk time is “m” minutes, then the number of “additional minutes” is …

       m -500

    The cost of those is $0.45 each, so (in dollars), the charge for additional minutes is …

       0.45(m -500)

    The charge of $30 applies regardless of the number of minutes, so is added to the minutes charge. The total cost of a bill for talking more than 500 minutes is …

       30 +0.45(m -500)

    _____

    The cost for talking 500 minutes or less is simply 30.

Leave an answer

45:7+7-4:2-5:5*4+35:2 =? ( )