im asking too for 7th grade can u help me pleasee:(
distance=speed x timeso speed = distance/time
400 mph
45km/h or 27.961 miles per hour
4 hours, 22 minutes, and 30 seconds
25000 / 1800 = 13.89 X 3.6= 50 KM/Hr
Jenna's average speed was 8 miles per hour.
The average speed was 24km/h
4.6ms
4.6ms
4.60
Average speed is about 6 mph.
If someone runs 10 miles in 90 minutes their average speed is 6.67 mph
Your average speed is 44.3 miles per hour.
Your average speed is 11.25 miles per hour.
Your average speed is 10 miles per hour.
If you run 2.5 miles in 20 minutes your average speed is 7.5 miles per hour.
An airplane travels 80 km in 10 minutes and then flies 100km in 20 minutes the average speed of the plane is? 80 km in 10 minutes = 8 km/min 100km in 20 minutes = 5 km/min Average speed = total distance traveled ÷ total time Average speed = 180 km ÷ 30 min = 6 km/minute Notice the average speed is closer to 5 km/min, because the plane spends twice as much time traveling at the slower speed.