miles=458
gallons=19.2
miles per gallon=miles/gallon
458/19.2=23.854 mpg
Your got about 18 miles per gallon (17.96875).
His mpg was 458/19.2 = about 23.85 mpg
15 mpg (miles per gallon). The key to this 'word problem' is understanding that "miles to the gallon" or more commonly, 'miles per gallon', means DIVISION. So, 300 miles per 20 gallons means: (300 miles) / (20 gallons) = 15 miles per gallon.
30 gallons. Simple really.
Divide the miles by the gallons used. 315.5/11.4 = 27.6754386
20.9 miles per gallon 389 / 18.6 = 20.9140
20mi = 1gal 555mi x (1gal/20mi) = 27.27gal
20.9 mpg
So you need to divide. Miles per gallon means the miles is in the numerator and gallons is the denominator. You may benefit from this article, which I wrote.
He needs to know how many gallons the tank holds. Then the can divide the amount of miles by the amount of gallons, to find out how many miles per gallon he gets.
The number of miles driven divided by the amount of gallons to drive that distance. If you drove 330 miles and it took 10 gallons to refill the tank, then you got 33 miles per gallon. You are only able to compute this if you start with a full tank and then refill the tank back to full after you drove a certain distance or start with a specific amount of gas and drive till you run out of gas.
800 miles @ 25 miles/gallon = 800/25 = 32 gallons.32 gallons @ 4 dollars/gallon = 32*4 = 128 dollars.800 miles @ 25 miles/gallon = 800/25 = 32 gallons.32 gallons @ 4 dollars/gallon = 32*4 = 128 dollars.800 miles @ 25 miles/gallon = 800/25 = 32 gallons.32 gallons @ 4 dollars/gallon = 32*4 = 128 dollars.800 miles @ 25 miles/gallon = 800/25 = 32 gallons.32 gallons @ 4 dollars/gallon = 32*4 = 128 dollars.