Question

A 68-mile trip uses two gallons of gas. How many gallons would you use on a 110-mile trip? Round to the nearest tenth of a gallon.
1.2
3.2
3.8
4.1

Answer 1

Use a proportion.

Answer 2

how would I set it up?

Answer 3

\[\frac{68}{2}=\frac{110}{x}\] or
\[\frac{2}{68}=\frac{x}{110}\] either way

Answer 4

First, write two fraction lines:

Answer 5

Choose the numerators to be miles, and the denominators to be gallons.
In each fraction you write a corresponding set of miles and gallons.