Given:
One student drove 670 miles in his car on 16.5 gallons of gasoline.
A) To find rate of the car,
[tex]\text{unit rate of the car=}\frac{670}{16.5}=40.61\text{ mi/gallons}[/tex]B) His sister drove 170 miles in her truck on 9.25 gallons of gasoline .
[tex]\text{Unit rate of the truck=}\frac{170}{9.25}=18.38\text{ mi/gallons}[/tex]C)
[tex]40.61-18.38=22.23\text{ mi/gallons}[/tex]So, the car gets more 22.23 mi/gallons than the truck.
Hence, Car gets better mileage.
