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Mathematics, 25.08.2021 14:00 daminexaguirre622

Troys truck has a 30 gallon gas tank and gets an average of 21 miles per gallon. if the tank is full, approximately how many miles has troy driven since last filling up his tank? write a LINEAR equation.
m=miles
t=total gas left

i know the answer is 315 but i need a linear equation. i tried 30(1/2)•21=m but that didn’t work.

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Troys truck has a 30 gallon gas tank and gets an average of 21 miles per gallon. if the tank is full...
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