Algebra 2

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When pedro called Gary, the call cost $1.58. If the rate for the call was 53 cents for the first three minutes and 15 cents for each additional minute or fraction thereof, how long did Pedro and gary talk?

  • Algebra 2 -

    .53 + .15[m-3] = 1.58
    .15[m-3] = 1.05
    [m-3] = 7
    m-3 = 7
    m = 10

    check:

    .53 + .15*7 = .53 + 1.05 = 1.58

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