Acircular running track is 1/4 miles long. elena runs in this track, completing each lap in 1/20 of an hour . what is elena’s running speed? include the unit of measure.

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

x-----> the distance in miles

y-----> the time in hours

s----> the speed in mph

so

we have

substitute

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

after simplifying it i got: -36.25 as my answer. hope that !