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How many gallons of gas would be needed to drive 31 miles if a car gets 28 miles per gallon?
You will need 1.107 gallons of fuel.
How many gallons of gas do you need to drive 2500 miles?
It depends on your gas mileage. If you get 30 mpg, you'll need 83 and 1/3 gallons. If you get 20 mpg, you'll need 125 gallons.
How many miles per gallons in 450 miles?
Not enough information. Basically, you need to divide the number of miles by the number of gallons.
How many gallons of gas do you need if you have to drive 679 miles if the car holds 21 gallons of gas?
We cannot answer this because.... you forgot to include the miles per gallon figure ! A car that only has a 15-gallon fuel tank could drive just as far as the one in your example - if it did more miles to the gallon !
How much would it cost to drive 2000 miles at 4.50 dollars per gallon if your truck gets 10 mpg?
10 MILES per gallon, and we want to drive 2000 miles, so let's divide the total number of miles by our mpg, and that will tell us how many gallons we need. 2000 /10 = 200 gallons. At 4.50 dollars per gallon, and we need 200 gallons, 200*4.50 = 900 dollars needed.
