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14 June, 02:45

There are already 1,200 gallons of water in a swimming pool. If water is filling the pool at a rate of 20 gallons per minute, which expression indicates the amount of water, in gallons, in the swimming pool after m minutes? A. 1,200 + 20 * m B. 1,200 : 20 * m C. 1,200 - 20 * m D. (1,200 + 20) : m

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  1. 14 June, 04:14
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    Answer: choice B

    Step-by-step explanation:

    If we put the above parameters in "slope-intercept" form, it would read ...

    y=mx+b

    y=200x+50

    Now rearrange the above equation into "standard" form ...

    -200x+y=50 ... subtract 200x from both sides

    200x-y=-50 ... multiply both sides by (-1); standard form

    equations cannot begin with a negative

    integer
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