The table below shows the number of miles four cars can travel on a given amount of gasoline.

Question

Car Mileage

Number of miles traveled
Number of gallons used
Car 1
528
22
Car 2
486
18
Car 3
475
19
Car 4
546
21

Which list shows the cars in order from least miles per gallon to greatest miles per gallon?
car 3, car 2, car 1, car 4
car 2, car 3, car 4, car 1
car 1, car 3, car 4, car 2
car 2, car 4, car 3, car 1

Answer 1

To determine the order of the cars from least miles per gallon (mpg) to greatest mpg, we need to calculate the mileage for each car using the formula:

\[ \text{Miles per gallon (mpg)} = \frac{\text{Number of miles traveled}}{\text{Number of gallons used}} \]

Let's calculate the mpg for each car:

• Car 1: \[ \text{mpg} = \frac{528 \text{ miles}}{22 \text{ gallons}} = 24 \text{ mpg} \]

• Car 2: \[ \text{mpg} = \frac{486 \text{ miles}}{18 \text{ gallons}} = 27 \text{ mpg} \]

• Car 3: \[ \text{mpg} = \frac{475 \text{ miles}}{19 \text{ gallons}} = 25 \text{ mpg} \]

• Car 4: \[ \text{mpg} = \frac{546 \text{ miles}}{21 \text{ gallons}} = 26 \text{ mpg} \]

Now, we can summarize the mileage for each car:

• Car 1: 24 mpg
• Car 2: 27 mpg
• Car 3: 25 mpg
• Car 4: 26 mpg

Next, we can order the cars based on their mpg from least to greatest:

1. Car 1: 24 mpg
2. Car 3: 25 mpg
3. Car 4: 26 mpg
4. Car 2: 27 mpg

Thus, the order from least miles per gallon to greatest miles per gallon is:

Car 1, Car 3, Car 4, Car 2

Therefore, the correct answer is:

car 1, car 3, car 4, car 2