Alex's car takes 10 gallons of gas for 20.10 miles. If Shon's car uses 3/10 the amount of gas as Alex's car to travelled, what is the mileage for each person's car? How man gallons of gas would each need to travel 4.5 miles?

To find the mileage for each person's car, we need to calculate the mileage for Alex's car and then use that information to calculate the mileage for Shon's car.

1. Let's start by finding the mileage for Alex's car:
- Alex's car travels 20.10 miles using 10 gallons of gas.
- To find the mileage, we divide the number of miles by the number of gallons: 20.10 miles / 10 gallons = 2.01 miles per gallon.
- So, Alex's car has a mileage of 2.01 miles per gallon.

2. Now, we can calculate the mileage for Shon's car:
- Shon's car uses 3/10 the amount of gas as Alex's car.
- To find the mileage for Shon's car, we multiply Alex's car mileage by 3/10: 2.01 miles per gallon * 3/10 = 0.603 miles per gallon.
- So, Shon's car has a mileage of 0.603 miles per gallon.

To calculate the amount of gas each person needs to travel 4.5 miles, we can use the mileage information obtained above:

3. Let's find out how many gallons of gas Alex's car would need to travel 4.5 miles:
- Alex's car has a mileage of 2.01 miles per gallon.
- To find the number of gallons needed for 4.5 miles, we divide the number of miles by the mileage: 4.5 miles / 2.01 miles per gallon ≈ 2.2388 gallons.
- So, Alex's car would need approximately 2.24 gallons of gas to travel 4.5 miles.

4. Now, we can calculate how many gallons of gas Shon's car would need to travel 4.5 miles:
- Shon's car has a mileage of 0.603 miles per gallon.
- To find the number of gallons needed for 4.5 miles, we divide the number of miles by the mileage: 4.5 miles / 0.603 miles per gallon ≈ 7.463 gallons.
- So, Shon's car would need approximately 7.46 gallons of gas to travel 4.5 miles.