An airplane flew from san francisco to washington d. c. approximately halfway through the flight, the plane had traveled 2,000 km in 2.5 hours. what was the speed during this period?

Speed = 800 km/hr

Step-by-step explanation:

Distance = 2000 km

time = 2.5 hours

Speed = distance / time

           = 2000/2.5

           = 800 km/hr

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )