A car travels 300 miles using 10 gallons of fuel. How many gallons of fuel are needed to travel 900 miles? The number of gallons needed is ____ gallons.
Answer & Analysis
Analysis
Question Analysis
This question evaluates the student's ability to set up and solve a proportion involving distance and fuel consumption.
Key Concept Explanation
Proportions are used to find the relationship between the distance traveled and the amount of fuel consumed. In this case, the distance is directly proportional to the amount of fuel.
Step-by-step Solution
1. Set up the proportion:
2. Cross-multiply:
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