SOLUTION: When six gallons of gasoline are added to a car's fuel tank, the gas gauge goes from 1/4 to 3/4 full. Assuming the gauge is accurate, find the total capacity, in gallons, of the ta

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: When six gallons of gasoline are added to a car's fuel tank, the gas gauge goes from 1/4 to 3/4 full. Assuming the gauge is accurate, find the total capacity, in gallons, of the ta      Log On


   

Question 818118: When six gallons of gasoline are added to a car's fuel tank, the gas gauge goes from 1/4 to 3/4 full. Assuming the gauge is accurate, find the total capacity, in gallons, of the tank.
I also need a formula for this problem, thank you!
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
fraction of tank filled:
3/4 - 1/4 = 2/4 = 1/2
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V = total capacity of tank
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V(1/2) = 6
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V = 12 gallons
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