Solve this problem by writing and solving an equation of ratios:
17 2/5 mi x
--------------- = -----------
0.75 gallon 1 gal
Cross multiplying produces the following equation:
(17 2/5)(mi-gal) = (0.75 gallon)x
Dividing both sides by 0.75 produces the desired quantity:
23.2miles or 23 1/5 miles
This car can travel 23 1/5 miles on 1 gallon of gas.
