Question

Jessica checked her gas mileage and found that she had used 17.4 gal of gas to travel 396 mi. At this rate, how many gallons will she use to travel from Los Angeles to Miami, a distance of 2735 mi.

Answer 1

So,

We can set up an equation.
$\frac{17.4}{396} = \frac{x}{2735}$

Multiply both sides by the LCM.
$47,589 = 396x$

Divide both sides by 396.
$170.17\overline{42}\ gallons = x$

Jessica will use approximately 171 gallons of gas.