Answer:
d=55t Sara travels 330 miles
Step-by-step explanation:
We are given that distance, d, Sarah drives varies directly to the time, t. This means
d=k⋅t
for some constant, k. Since Sarah travels 440 miles in 8 hours, we substitute these values into the formula for direct variation to find
440=k⋅8
Dividing by 8 gives k=55, so an equation that relates d and t is
d=55t
Substituting t=6 yields
55(6)=330
So Sarah can travel 330 miles in 6 hours.