Respuesta :

Answer:

d = r * t

Step-by-step explanation:

This is another one of those questions (there have been a lot lately) where what is wanted is not very clear. You want just the equation it would take to get the answer. Then you need the answer. There is a decimal involved but not much of one.

d ∝ h  which means that d varies directly as h  the time.

The constant of direct variation is r.  This world class runner is going for 2 hours and in that time he goes 17 km.

d = r * h                     Answer. The question wants the equation.

17 = r * 2                    Divide by 2    

17/2 = r*2/2              Do the division

r = 8.5 km / hr.          This is the numerical answer.