SOLUTION: The fuel efficiency of a certain car is 31.0 miles per gallon. Convert the efficiency into kilometers per litre. The conversion factor from gallons to litres is: 1 gal = 3.

Question 1162013: The fuel efficiency of a certain car is 31.0 miles per gallon. Convert the efficiency into kilometers per litre.

The conversion factor from gallons to litres is: 1 gal = 3.79 L.
Found 4 solutions by josgarithmetic, ikleyn, MathTherapy, Alan3354:
Answer by josgarithmetic(39625)   (Show Source): You can put this solution on YOUR website!

Simplify that and compute the value.
Answer by ikleyn(52856)   (Show Source): You can put this solution on YOUR website!
.

1 mile = 1609 meters; therefore 31 = 31*1.609 . 1 gallon = 3.79 liters; therefore 31 = = 13.2 kilometers per liter. ANSWER

Answer by MathTherapy(10556)   (Show Source): You can put this solution on YOUR website!
The fuel efficiency of a certain car is 31.0 miles per gallon. Convert the efficiency into kilometers per litre.
The conversion factor from gallons to litres is: 1 gal = 3.79 L.

1 gallon = 3.79 L 1.609344 kilometers = 1 mile
Using DIMENSIONAL ANALYSIS, we get:
------ Canceling ALL appropriate measurements

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
It's a conversion problem.
Just arithmetic, and knowing the conversions.
Look it up.
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Cars in France, and probably other countries, use liters per 100 kms for "mileage."
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Tho the metric system has many advantages, this is a bad idea IMO.

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