E A charter
4.5 hours
distance traveled is directly
Assume the
proportional to the time spent.
Write a direct variation equation.
1b

Question:

A charter bus travels 225 miles in  4.5 hours. Assume the  distance travelled is directly  proportional to the time spent.

Write a direct variation equation.

Step-by-step explanation:

Let:

y =  distance

x = time

So:

 and

Since, they are directly proportional: The following relationship exists

Where

k = constant of variation

Substitute values for y and x

Make x the subject

Substitute 50 for k in