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10 October, 07:40

A pump removes 1000 gal of water from a pool at a constant rate of 50 gal/min. which equation models the amount of water y in the pool after t minutes?

a) y=50t - 1000

b) y = 50t + 1000

c) y = - 50t - 1000

d) y = - 50t + 1000

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Answers (2)
  1. 10 October, 09:31
    0
    It's C) my sister told me
  2. 10 October, 10:27
    0
    d) y = - 50t + 1000

    You can re-arrange as

    The amount of water left in the pool Y = 1000 gal at the beginning minus 50 gal x number of minutes passed. 1000 - 50t (or - 50t+1000)
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