SOLUTION: James covers a distance of 8 meters in the first second of a 100 meter race. Then he sprints at a speed of 9 meters per second. How far is James from the finish line 9 seconds afte

Question 876149: James covers a distance of 8 meters in the first second of a 100 meter race. Then he sprints at a speed of 9 meters per second. How far is James from the finish line 9 seconds after the race has started? My teacher gave me the equation
an=a1+(n-1)d i just dont understand what to plug in.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Here's how I would do it:

9 sec after the race started is 8 sec after
he started sprinting

So, he has gone m
That means he is m
from the finish line
--------------------
Putting into a formula:
Let = distance from the finish line
after 9 sec

m
where = rate x time

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