Question

A circular running track is 1/4 mile long. Elena runs in this track, completing each lap in 1/24 of an hour. What is Elena’s running speed?

Answer 1

2.68224m/s

Explanation:

a 1/4 of a mile is 0.25 miles

`(1)/(24) * 60 = 2.5\\`

2.5 mins = 1/24 of an hour

2.5 mins = 150s

`speed= (distance)/(time)`

speed = m/s

distance = metres

time = s

402.336 metres = 0.25 miles

402.336(m)/150(s) = 2.68224 m/sif wrong complete steps with correct conversions using the following equation above and below :
`speed= (distance)/(time)`

hope this is correct,

thank you for reading this.

Answer 2

30 mph

Explanation:

I use the formula DST. As seen in the model, distance divided by time. So 1/4 mile is 1.25 mile and 1/24 of an hour. That is the first step. The second step is to divide 1.25 mile by 1/24 which is 30. Thus, her speed is 30mph.