On a weekend road trip, the Jensen family drove
210 miles on highways, where their car gets 35 miles
for each gallon of gasoline, and 54 miles on city
streets, where their car gets 18 miles for each
gallon. How many gallons of gas did they use?
210/35 + 54/18
9322
11.8
Oops answer is 9 gallons
To find the number of gallons of gas used by the Jensen family on their road trip, we need to calculate the gas consumption for both highway and city driving, and then add those two values together.
First, let's find out how many gallons of gas were consumed on the highways. Given that their car gets 35 miles per gallon on the highway and they drove 210 miles, we can divide the total distance by the car's efficiency to obtain the number of gallons:
Highway gas consumption = 210 miles / 35 miles per gallon = 6 gallons
Next, we need to calculate the gas consumption for city driving. Since their car gets 18 miles per gallon in the city and they drove 54 miles, we can perform a similar calculation:
City gas consumption = 54 miles / 18 miles per gallon = 3 gallons
Now, to determine the total amount of gas used on their road trip, we add the gas consumption for highway and city driving:
Total gas used = Highway gas consumption + City gas consumption
= 6 gallons + 3 gallons
= 9 gallons
Therefore, the Jensen family used 9 gallons of gas on their road trip.