Cars use about 4 over 9 of the energy consumed by the transportation industry. Buses and trains
use 1 over 6. How much more energy is used by cars than by buses and trains?
Select the correct answer.
To find the amount of energy used by cars, we need to subtract the energy used by buses and trains from the total energy used by the transportation industry.
The fraction of energy used by cars is 4/9.
The fraction of energy used by buses and trains is 1/6.
To subtract fractions, we need a common denominator. The least common multiple of 9 and 6 is 18.
4/9 can be rewritten as 8/18.
1/6 can be rewritten as 3/18.
Therefore, cars use 8/18 - 3/18 = 5/18 more energy than buses and trains.
The answer is 5/18.
To find out how much more energy is used by cars compared to buses and trains, we need to calculate the difference in the energy consumed.
1. Calculate the fraction of energy used by cars:
Cars: 4/9
2. Calculate the fraction of energy used by buses and trains:
Buses and trains: 1/6
3. Find the difference in energy consumption:
Cars - Buses and trains = (4/9) - (1/6)
To simplify the calculation, we need to find a common denominator for 9 and 6, which is 18.
= (8/18) - (3/18)
= 5/18
Therefore, cars use 5/18 more energy than buses and trains.
To find out how much more energy is used by cars than by buses and trains, we need to compare the fractions of energy consumed by each mode of transportation.
The fraction of energy consumed by cars is 4/9.
The fraction of energy consumed by buses and trains is 1/6.
To compare these fractions, we need to find a common denominator. The least common multiple of 9 and 6 is 18.
Now let's convert the fractions to have a denominator of 18:
For cars: (4/9) * (2/2) = 8/18
For buses and trains: (1/6) * (3/3) = 3/18
Now we can subtract the fraction of energy consumed by buses and trains from the fraction of energy consumed by cars:
8/18 - 3/18 = 5/18
Therefore, cars use 5/18 more energy than buses and trains.
The correct answer is: 5/18.