Grace ddrove 159 miles and used 5 3/10 gallons of gas. How far could she go with one gallon of gas?

159 / 5.3 = 30

simple.

Set up two fractions like so:
159mi/5.3gal =x/1gal
answer would be 30 miles.

To find out how far Grace could go with one gallon of gas, we need to divide the distance she traveled (159 miles) by the amount of gas she used (5 3/10 gallons).

First, let's convert 5 3/10 to an improper fraction.
5 3/10 = (5 * 10 + 3) / 10 = 53 / 10

Now, we can calculate the distance Grace could go with one gallon of gas:
Distance with one gallon of gas = 159 miles / (53 / 10 gallons)

To divide by a fraction, we can multiply by its reciprocal:
Distance with one gallon of gas = 159 miles * (10 / 53 gallons)

Applying the multiplication:
Distance with one gallon of gas = 1590 / 53 miles

And finally, we can simplify this fraction:
Distance with one gallon of gas ≈ 29.811 miles (rounded to three decimal places)

Therefore, Grace could go approximately 29.811 miles with one gallon of gas.