brooklynn2724 brooklynn2724
  • 13-02-2019
  • Mathematics
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A circular running track is 1/4 of a mile long Elena runs this track completing each lap in 1/20 of an hour what is her speed

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calculista
calculista calculista
  • 23-02-2019

Answer:

The speed is equal to [tex]5\frac{mi}{h}[/tex]

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

[tex]s=\frac{x}{y}[/tex]

In this problem we have

[tex]x=(1/4)\ mi[/tex]

[tex]y=(1/20)\ h[/tex]

substitute

[tex]s=\frac{(1/4)}{(1/20)}=20/4=5\frac{mi}{h}[/tex]

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