plss help equation for this statement

the distance D travelled by a car varies directly as its speed s

Speed formula: s = d/t

distance (d) varies directly as speed (s): d is proportional to speed. d is also proportional to time (t).

To represent this relationship as an equation, we can use the concept of direct variation which states that two variables are directly proportional if one can be expressed as a constant multiple of the other.

In this case, the distance D is directly proportional to the speed s. Mathematically, we can write this as:

D = k * s

Where:
- D represents the distance traveled by the car,
- s represents the speed of the car, and
- k is the constant of variation.

The constant of variation (k) represents the ratio between the two variables and remains the same throughout the problem. To determine the value of k, we need additional information such as a specific distance or speed value.

I want show my answer

(a). Xenny is traveling by car,and the distance she travels, d, varies directly with the amount of time, t, that she drives.In 3hrs she drove 60km.Find the constant of variation and the equation relating d to t.

D = ks

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