So a mile has 5280 feet.
21,129/5280= 4 mph
multiply
4 x 2 = 8 miles in 2 hours
Find the rate in which both balls make one full rotation around the track.
Ball A:
It takes 30 seconds for Ball A to make a full rotation.
Ball B:
It takes 20 seconds for Ball B to make a full rotation.
Find the least common multiple of 20 and 30 to find the time at which they'll meet.
Multiples of 20: {20,40,60}
Multiples of 30: {30,60}
60 is the least common multiple of both 20 and 30.
The balls will meet again at
60 seconds.
Answer:
Step-by-step explanation:
Area of one face = 3×3 = 9 m²
A cube had six faces, so surface area of cube = 6×9 = 54 m²
Answer:
x=2
Step-by-step explanation: