How to calculate speed grade 11? ?

To calculate speed, you need to know the distance traveled and the time it took to travel that distance. The formula for speed is:

Speed = Distance / Time

For example, if a car travels 100 miles in 2 hours, the speed would be:

Speed = 100 miles / 2 hours
Speed = 50 miles per hour

So, the speed of the car is 50 miles per hour.