Question 119862
You can solve this in a couple of ways:
1) Use proportions:
Let x = the number of gallons required to drive 518 miles. Then you can write:
{{{370/10 = 518/x}}}
{{{x = 5180/370}}} 
{{{x = 14}}}gallons.

2) If 10 gallons are required to drive 370 miles, then the gas consumption is {{{370/10 = 37}}}mpg
To drive 518 miles you would need {{{518/37 = 14}}} gallons.