Question 71648

The direct variation equation is:

d=kt
where d is the distance that the giraffe travels
k is the constant of variation
and t is time

Now we are told that the giraffe can travel 800 ft in 20 seconds, so we can solve for the constant of variation (k)

800=k(20)  divide both sides by 20
k=40-------------and the units are ft per sec

So now we can write
d=40t

ck

d=40t
800ft=40*20 ft
800 ft= 800 ft


Hope this helps ----ptaylor