Question

James covers a distance of 8 meters in the first second of a 100 meter race. Then, he sprints a speed of 9 meters per second. How far is james from the finish line 9 seconds after the race has started? Using An=a1+(n-1)d

Answer 1

uhm too much math im lazy lol sowwy

Answer 2

I just don't know how to plug them in the equation but I can figure it out if I know the numbers in the equation

Answer 3

lol what grde ru in

Answer 4

10th

Answer 5

meh too

Answer 6

As you can see this is an arithmetic sequence problem and we want to know the numbers of the sequence. The problem tells us that James covered 8 meters in the first second and 9 meters/ second afterwards so we can find the point in the race where he after 9 seconds using this information in 2 ways:
Way 1:

Answer 7

Another way to solve this would be to add up 9 meters to 8 meters for every second up until we get to 9 seconds or knowing that he is going at 9 meters/ second we can figure out the distance after 9 seconds and then add it to 8 by multiplication. When you can always check your work, this is one of many ways to do so