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The distance that a truck can travel without refueling varies directly with the number of gallons of gasoline in the tank. If a truck can go 360 miles on 12 gallons of gas, how far can it go on 7 gallons? 213 miles 210 miles 211 miles 215 miles

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altavistard
Write and solve an equation of ratios:

360 miles         12 gallons
--------------   =   ---------------    => 210 miles on 7 gallons.
        x                  7 gallons

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