Question

Mr. Moscal's car averages 32 miles per gallon on the highway. Predict about how far he can expect to travel on a road trip using 10 gallons of fuel

Answer 1

We know that, on average, the car travels 32miles/gallon on the highway. Considering that for each mile traveled, the car will consume 1 gallon of fuel, you can calculate how many miles it will travel, given a fuel quantity using cross multiplication:

1 gallon _____ 32 miles

10 gallons ___ x miles

Both sets of values must be at the same rate so that:

$\frac{32}{1}=\frac{x}{10}$

From this expression, you can calculate the miles he can cover as follows:

$\begin{gathered} 10\cdot(\frac{32}{1})=\frac{10}{10}x \\ 320=x \end{gathered}$

The car can travel up to 320 miles with 10 gallons of fuel.