12.5 gallons
20 miles costs 4, therefore 4 x 250/20 = 50$
250 miles is 402.336km
250/18=13.8888888*3.5=$48.61
250 miles divided by 20 miles is 12.5 gallons. 12.5 gallons times 3.10 is $38.75 in the end.
It will take just under four hours to drive 250 miles at 65 mph. When you are traveling 65 mph, every hour you drive you will go 65 miles. When you divide 250 by 65, you get 3.84 hours.
Gas prices are different in different parts of the country. In Reno, NV it's $4.07 a gallon. It would cost me around $25. You need to find out how much gas costs in your area. Divide 15 into 250 miles. This tells you (approximately) how many gallons you need. Now, multiply that number by how much one gallon of gas costs.
The drive is almost 250 miles. You would need to allow at least 5 hours and 30 minutes, excluding rest breaks.
250 miles = 402,336 meters.
Okay so we can drive 30 miles on one gallon. So divide 1500 by 30 to get the total number of gallons we will need. 1500/30 = 50. So we need 50 gallons, and if gas is 5 dollars a gallon, 50 * 5 = 250 dollars
About 3 and a half hours.
A little over 250 miles.