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A tank can hold 30,000 gallons of water . If 500 gallons of water are used each day, write the equatuon that represents the amout of water in the tank x days after it is full.

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reynoldsrichard
Here is the equation
Good Luck
3000÷X=500
"y" is the amount left
"x" is the number of days
30,000 is the starting point (b)
500 gallons taken away each day (m)

y = (m)(x) + (b)

y = -500x + 30,000

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