3X -3 => 9
3X => 9+3
3X => 12
3X/3 => 12/3
X => 4
tell me if you don't understand
Ans
i cant see the pic
Step-by-step explanation:
So James covers 8 meters in the first second....then he sprints 9 meters per second......
9 seconds after the race....so there are 8 seconds that he is sprinting 9 meters per second.....(8 * 9) = 72 meters....plus the 8 meters for the 1st second = (72 + 8) = 80 meters....
and if it is 100 meter race, and he has ran 80 meters, then that leaves 20 meters from the finish line....answer is D