Martin runs 100 meters in 15 seconds. what is the equation for d, the distance in meters that martin covers per second? 15 + d = 100 100 + d = 15 d x 15 = 100 d x 100 = 15

The answer is d x 15 =100

In order to get the value of d, you must transpose the constant 15 to the left side of the equation.

It can also be written like this:

15d = 100

Divide both sides by 15:

15d / 15 =100/15

d = 6.667 meters per second

To solve this problem you must apply the proccedure shown below:

 1. You have that Martin runs 100 meters in 15 seconds. Therefore, the equation for d, the distance in meters that Martin covers per second is:

 dx15=100

 2. Therefore, the ansnwer is the third option, which is:dx15=100

 

This does not make sense