<PRE><B>Question 460324</B>
A car travels at 55.0 miles per hour and gets 10.0 kilometers per liter of gasoline.
 How many gallons of gasoline are needed for a 5.00 hour trip?
:
1 gal = 3.785 litera
then it gets
3.785 * 10 = 37.85 km/gal
:
1 km = .6214 miles
.6214 * 37.85 = 23.52 mile/gal
:
A five hr trip at 55 mph: 5 * 55 = 275 mi
:
{{{275/23.52}}} = 11.7 gal of gas to make the trip</PRE>