Answer:
You can solve a problem. by evaluating the situation and determinig which stragey is fit for use what ever you prefer.
Prob ( a tail in one toss) = 1/2
Prob( 3 tails in 3 tosses) = 1/2 ^3
= 1/8 (answer)
Dear Carlaac04,
To answer this questions you need to know that there are 1,760 yards in a mile. Multiply that by 2 and you get 3,520 yards. Next you multiply 400 by 5, because the each track is 400 yards and Keisha walked 5 tracks, which is equal to 2,000. Lastly, you subtract 2,000 from 3,250 which is equal to 1520 yards.
(X * y) + 9
Xy + 9
you can't reduce it further
~Zoe
