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10 September, 10:43

In November 2017, gas was selling for $3.31 a gallon. This was $.85 cheaper than a year before. What was the percent decrease?

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Answers (2)
  1. 10 September, 13:26
    0
    Step-by-step explanation:

    so gas was selling for 3.31 ... that is 85 cents cheaper then a yr before ... so a year before it costs (3.31 + 0.85) = 4.16

    % decrease = (decrease / original cost) * 100

    = (0.85 / 4.16) * 100

    = 0.2043 * 100

    = 20.43% decrease <==
  2. 10 September, 13:54
    0
    74.32

    Step-by-step explanation:

    $3.31-$0.85=2.46

    2.46/3.31*100=74.32
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