Answer: a) 2556.25 miles
b) 82.5 gallons
Step-by-step explanation:
Given : The distance from New York City to Los Angeles is 4090 kilometers.
[tex]=4090\times\dfrac{5}{8}=2556.25\text{ miles}[/tex] [∵ 1 km= [tex]\dfrac{5}{8}[/tex] miles]
Hence, the distance in miles= 2556.25
If your car averages 31 miles per gallon, then the number of gallons of gas required to use driving from New York to Los Angeles =[tex]\dfrac{\text{Distance}}{31}[/tex]
[tex]=\dfrac{2556.25}{31}=82.4596774194\approx82.5\text{gallons}[/tex]
Hence, the required number of gallons = 82.5 gallons