Asked by Carly
                Hi, 
Would you please check to see if I did this problem correctly?
Your distance from lightning varies directly with the time it takes you to hear thunder. If 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 = distance from lightning
t = time it takes you to hear the lightning
d = kt
2 = k10
k = 20
So, d = 20t
b. Estimate how many seconds it would take for the thunder to travel a distance of 4 miles.
4 = 20t
t = 80 miles
Thank you
            
        Would you please check to see if I did this problem correctly?
Your distance from lightning varies directly with the time it takes you to hear thunder. If 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 = distance from lightning
t = time it takes you to hear the lightning
d = kt
2 = k10
k = 20
So, d = 20t
b. Estimate how many seconds it would take for the thunder to travel a distance of 4 miles.
4 = 20t
t = 80 miles
Thank you
Answers
                    Answered by
            meow meow kit kat
            
    the time should not be in MILES
    
                    Answered by
            Carly
            
    right, 80 seconds.  Thank you
    
                    Answered by
            oobleck
            
    d = kt
3 = 10k
k = 1/5
d = t/5
that is, 1/5 mile for every second of elapsed time
    
3 = 10k
k = 1/5
d = t/5
that is, 1/5 mile for every second of elapsed time
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