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3 May, 06:30

1. The pollution level in the centre of a city at 6 am is 30 parts per million and it

grows by 25 parts per million every hour after. make an equation

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Answers (1)
  1. 3 May, 09:08
    0
    y=total pollution (PPM)

    x=hours after 6 am

    y=30+25x
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