Answer:
14
Step-by-step explanation:
Jack drove 278.2 miles on 19.6 gallons of gasoline. then
278.2 miles - 19.6 gallons
x miles - 1 gallon
Write a proportion:
[tex]\dfrac{278.2}{x}=\dfrac{19.6}{1}[/tex]
Cross multiply:
[tex]19.6\cdot x=278.2\cdot 1\\ \\19.6x=278.2\\ \\x=\dfrac{278.2}{19/6}\approx 14\ miles[/tex]
