Question

Please help me

Answer 1

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