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A barrel of oil is filled at a constant rate of 7.5 gal/min. The barrel had 12 gallons before filling began. Write the equation in standard form to model the linear situation
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A barrel of oil is filled at a constant rate of 7.5 gal/min. The barrel had 12 gallons before filling began. Write the equation in standard form to model the linear situation

User Alex Krupka
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y=7.5x + 12

because it is 7.5gal per minutes you put it next to the x and because it already had 12 you add the 12
User Shavar
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