r=5 mph, t=4 hours, d= miles

Question

Use the formula d=rt to find the value of the missing variable.

Answer 1

You know that d = rt.

 

And you know that r = 5 and t = 4.

 

So put those values for r and t into the formula:

 

d = rt

d = 5 * 4

d = 20 miles