what equation do i use to calculate time? t = d/s s = d/t d=ts

Brief Explanations:

To calculate time ((T)) when distance ((D)) and speed ((S)) are known, we start from the basic formula relating distance, speed, and time: (D = T\times S) (distance equals time multiplied by speed). To solve for (T), we divide both sides of the equation by (S), which gives (T=\frac{D}{S}). The other options: (S = \frac{D}{T}) is the formula for speed, and (D = TS) is the original distance - speed - time formula (not solved for time). So the equation to calculate time is (T=\frac{D}{S}).

Answer:

A. (T = D/S)