quadractics question HELPPPPP!!!

[Guest]

I need this as soon as possible!! PLEASE HELP!!

During a race, Runner A is travelling at a speed of 7.1m/s and is currently 12m in front of Runner B. Runner B is traveling at a speed of 6.0m/s and wants to catch up to Runner A. If Runner B starts to accelerate at a rate of 0.2m/s/s, how long in seconds will it take him to catch up to runner A? If there are 250 m remaining in the race,(relative to Runner A) who will win the race?

I have found 2 equations that I think will help figure this out.

7.1y+12=6y+1/2(0.2)y²
x=7.1y

 

[happy]

Caitlin, you have got to learn that you can't post the same thing 4 or 5 times.

http://www.freemathhelp.com/forum/viewtopic.php?t=10679

 

[stapel]

Just FYI:

i'm sorry that i have a life and that i'm not the one sitting in front of my computer screen the whole day doing someone else's high school math problems....a "moronic loser" like you....I guess math is your pleasure? Have fun with that....that's how it was with everything else in your pathetic life right?