How much time does it take for a student running
at an average speed of 5.00 m/s to cover a distance
of 2.00 km?

400 seconds

Step-by-step explanation:

For this exercise it is necessary to remember the following formula:

Where "V" is speed, "d" is the distance and "t" is the time.

If you solve for the time, you get:

In this case you can identify that that the average speed and the distance are:

You need to make the conversion from kilometers to meters. Since:

You get:

Therefore, substituting values into    and evaluating, you get the time is:

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice