If there are 1000 meters in a kilometer and a runner travels 125 meters per minute, that would mean the runner could travel one kilometer in 8 minutes (1000 / 125 = 8). If the runner is going to run 10 kilometers it would take (10 * 8) or 80 minutes to finish the 10 kilometers.
52 minutes 8.58 seconds.
150 sq meters
The length of a rectangle whose area is 72 square meters and whose width is 6 meters, would be 12. Note that 12 x 6 = 72.
12.73 meters
The volume of a sphere whose radius is 9 meters is: 3,054 meters3
This can be written as 100 m per 25 s. or as a fraction in meters/second, so 100m/25s. This fraction can be reduced to 4m/1s, or 4 meters per second. To figure out per minute, multiply by 60 (there are 60 seconds in a minute), so 240 meters per minute. With 60 minutes in an hour, multiply by 60 again and you get 14,400 meters per hour. If you need speed in days, multiply by 24, in weeks, multiply the meters per day by 7, etc.
Its average speed is exactly 100 meters per 25 seconds. Its unit speed is 4 meters per second.
Width: 16 meters Length: 21 meters Check: 16+21+16+21 = 74 meters which is its perimeter
A circle with a radius of 21 meters has a circumference of 131.95 meters.
37 meters
area = .5 base x .5 height, so height = area/(.5base) = 3.2 meters
A circle with a radius of 7.75 meters has an area of 188.69 square meters.