Do a practice problem for direct variables

Sure! Here's a practice problem for direct variables:

You are planning a road trip and want to calculate how much fuel you will need based on the distance you will travel. The formula to calculate the fuel consumption is:

Fuel Consumption = Distance / Fuel Efficiency

Suppose you are planning to drive 500 miles and your car's fuel efficiency is 25 miles per gallon.

Calculate the fuel consumption for this road trip.

Solution:
Distance = 500 miles
Fuel Efficiency = 25 miles per gallon

Using the formula:
Fuel Consumption = Distance / Fuel Efficiency

Fuel Consumption = 500 miles / 25 miles per gallon

Fuel Consumption = 20 gallons

Therefore, you will need 20 gallons of fuel for this road trip.