You put 16 gallons of gasoline (x) in your car. You know that this amount of gasoline will allow you to drive 512 miles (y).
what does y equal
To find out what y equals, we need to determine the miles per gallon (MPG) of the car. We can do this by dividing the total miles driven by the amount of gasoline used:
MPG = y / x
We know that x = 16 gallons and y = 512 miles, so we can substitute these values into the equation:
MPG = 512 miles / 16 gallons
MPG = 32 miles per gallon
Now that we know the MPG of the car, we can use it to find out what y equals for a different amount of gasoline. Let's say we put 20 gallons of gasoline in the car. We can use the MPG to calculate how far we can drive:
y = MPG * x
y = 32 miles per gallon * 20 gallons
y = 640 miles
Therefore, if we put 20 gallons of gasoline in the car, we can drive 640 miles.