Seconds are a measure of time and miles are a measure of distance. There is no answer.
2 hours, 38 minutes, 10.91 seconds
18.7 miles in 100 seconds = 673.2 miles per hour.
If you're saying that it takes 2 minutes 30 seconds to cover 1 mile, then the number of miles covered in 1 hour is 60/2.5 = 24 miles.
100 miles/50 seconds= 2 miles per second average speed
126,720 of them.
1,243.6 seconds to cover 19 miles at 55mph
6 hours, 29 minutes, 32 seconds. Call it 6 and 1/2.
In 2 hours, you will travel 140 miles. The extra 12 miles will take 10 minutes 28 seconds.
To calculate the speed in mph, first convert the time to hours (2 hours 40 minutes and 3.4181 seconds is equivalent to 2.673394 hours). Then, divide the distance by the time: 500 miles / 2.673394 hours ≈ 186.94 mph.
18 miles at 43 mph would take 18/43 = 0.4186 hours = 25.116 minutes = 1506.98 seconds to 2 dp)
1,486.95 seconds.
1,668 seconds