1. your distance from lightning varies directly with the time it takes you to hear thunder
you hear thunder 10 seconds after you see the lightning, you are about 2 miles from the
lightning
a. write a direct variation equation for the relationship between time and distance

d = 1/5t

Step-by-step explanation:

Since it is a direct variation , Let d represent the distance and t represent the time ,then

d ∝ t

introducing the proportionality constant, we have

d = kt

Substituting t = 10 and d = 2 , we have

2 = 10k

k = 1/5

substitute k = 1/5 into the original equation , we have

d = 1/5t

1. minimum

2. 6400

3. eight

hope this !