Answer:
ahm,nandito nato sa brainly but I think dimo nakita kaya heto nag copy nalang ako....
Step-by-step explanation:
Elena's running speed is 5 miles/hour
Explanation:
The speed is defined as the covered distance per unit time
In the problem, we have:
The distance covered is the length (circumference) of the circular track which is given as \frac{1}{4}
4
1
I'm
of a mile.
We are also given that she completes each lap (she completes \frac{1}{4}
4
1
of a mile) in \frac{1}{20}
20
1
of an hour
To get her speed, we will divide the distance covered by the time taken to cover this distance
This is done as follows:
speed = \frac{\frac{1}{4} }{\frac{1}{20} } = 5
20
1
4
1
=5 miles/hour
This means that:
Elena can run 5 miles each hour
