by 20, 480 miles
by 20%, 400 miles
20 x 25 = 500 square miles.
500 miles.
500 mi / 20 mpg = 25 gallons.
500 - 17% = 415
320 decreased by -20 = 300
500 - 13% = 87% of 500 = 500*87/100 = 435
8 hours 20 minutes.
500 miles 500 miles 500 miles
When 25 is decreased by 20% the result 20.
450 decreased 20% results in: 360
To calculate the time it takes to travel 500 nautical miles at a speed of 20 knots, you can use the formula: time = distance ÷ speed. So, time = 500 nm ÷ 20 knots = 25 hours. Therefore, it would take 25 hours to travel 500 nautical miles at that speed in calm waters.
Well if typical car hold 10 gallons, then it will do about 300 miles, (average 30 miles/gallon). so 500 miles trip will requires about 20 gallons of gas. NOTE: if your vehicle does 20-30 miles/gallons, it will require more gas. (estimate 30-40 gallons)