Question

A car travels 172 miles using 7 gallons of gas. At that rate, how far can the car travel using 42 gallons of gas?

Answer 1

\[\frac{172}{7} = \frac{ x }{ 42 }\]

Set up the above ratio and solve for "x".

Staying away from decimals and simplifying, you get:

\[\frac{ 172 \times 42 } { 7 } = x = 172 \times 6\]