Answer:
15
Step-by-step explanation:
1/4 = 0.25
0.25 x 12 = 3
12+3 = 15
Given that,
A circular running track is ¼ mile long.
Elena runs on this track, completing each lap in 1/16 of an hour
To find,
Elena’s running speed.
Solution,
Formula used :
Speed = distance/time

So, Elena’s running speed is 4 mph.
Answer: 10.8 cm.
Step-by-step explanation: The diameter of a circle is 2*radius. 2*5.4 = 10.8 so the answer is 10.8 cm.
Answer:
5
Step-by-step explanation: