Jesse’s car gets 30 miles per gallon of gas. (a) If Las...

Jesse’s car gets 30 miles per gallon of gas.
(a) If Las Vegas is 285 miles away, how many gallons of gas are needed to get there and then home? (b) If gas is $$\$ 3.09$$ per gallon, what is the total cost of the gas for the trip?

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Key Concepts

Cost Calculation

Cost calculation is the process of finding the total expense incurred by multiplying the quantity needed (in this case, gallons of fuel) by the per-unit price. This concept is fundamental in budgeting and comparing different options in real-world scenarios.

Round Trip Calculation

Round trip calculations involve doubling the one-way trip distance to account for both directions. Understanding the concept of the round trip is essential when estimating resources like fuel, which must cover the entirety of the journey.

Proportional Reasoning

Proportional reasoning involves using ratios to scale quantities. In problems involving fuel consumption and travel distance, it allows one to determine how much fuel is needed for a specific distance by setting up a proportion based on the vehicle's efficiency.

Fuel Efficiency

Fuel efficiency is a measure of how far a vehicle can travel on a specific amount of fuel. It is generally expressed as distance per unit of fuel (e.g., miles per gallon), allowing one to estimate the fuel consumption required for a given trip.

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