Answer:
[tex]r=\frac{d}{t}[/tex]
Explanation:
Here, the given formula that is used to find distance,
[tex]d=rt[/tex] -----(1)
Where, r is the rate ( speed ),
t is time.
From equation (1),
[tex]rt=d[/tex]
Dividing 't' on both sides,
We get,
[tex]r=\frac{d}{t}[/tex]
Which is the required equation that is used to find rate or speed.