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28 December, 21:48

Rachael's backyard swimming pool is being emptied by a pump. The amount of water in the pool W in gallons at any time t in hours is given by the following equation: W = 9,000 - 250t. How many gallons of water are being pumped out each hour?

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  1. 28 December, 21:57
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    Ok so it is

    W=origianl amount-amount taken out

    amount taken out=amount taken out per hour times number of hours (t)

    theref

    250 gallons aer being pumped out every hour
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