Question

Find the unit rate (constant of proportionality) of the distance traveled.

Number of hours
0.25 1.5 2.5 3
Distance traveled (km) 3 18 30 36

Answer 1

12.

Explanation:

if to re-write the given condition, then

`(3)/(0.25) =(18)/(1.5) =(30)/(2.5) =(36)/(3) ;`

it is clear, the required constant is 12 (12 per hour).