Question

Write the other equation that relates d and t in this context

Answer 1

You have the next data:

$s=\frac{d}{t}=\frac{400}{8}=50$

That is the constant s= 50 (the speed is the constant)

You can see that the equation that relates d and t could be find using the formula of the speed:

$s=\frac{d}{t}$

you know that s=50:

$50=\frac{d}{t}$

then:

$50t=d$

and:

$t=\frac{d}{50}$