vintallica
New member
- Joined
- Dec 9, 2010
- Messages
- 3
This is an Extra credit prob. my teacher gave me and i really need an answer because it is worth a lot of points. If you can give me the answer, i will get out of failing and it can turn my grade up high so PLEASE HELP! THAnks soooo much.
Observe this passage carefully:
Fred and Ethyl are in a race.
They both run tha same rate and walk the same rate.
Fred runs half the distance and walks half the distance.
Ethyl walks half the time and runs half the time.
Who wins? Explain your answer in a 2 column proof. Prove A + B ? C.
On the right side of this 2 column proof you have to put how you got your answer for each letter. Ex: theorems, postulates, properties, like how you do a normal proof.
A= Freds walking time
B= Fred's running time
C= Ethyl's running time
D = Total race time
R= Run rate (both)
W= Walk rate (both)
R?W= Running is faster
Use this to help: find a substitute R?W and plug it in for R and W.
Fred
D/2 = AW = BR
Ethyl
D = C/2W + C/2 R
AW + BR = CW/2 + CR/2
Two big hints: Ethyl wins because Fred takes more time. Running is faster than walking but you have to write a proof how ethyl wins.
This is going to be a big proof and my teacher says it took him 2 hours. show work also please so i know how you got the answer. and PLEASE BE CORRECT Thanks soo much
Observe this passage carefully:
Fred and Ethyl are in a race.
They both run tha same rate and walk the same rate.
Fred runs half the distance and walks half the distance.
Ethyl walks half the time and runs half the time.
Who wins? Explain your answer in a 2 column proof. Prove A + B ? C.
On the right side of this 2 column proof you have to put how you got your answer for each letter. Ex: theorems, postulates, properties, like how you do a normal proof.
A= Freds walking time
B= Fred's running time
C= Ethyl's running time
D = Total race time
R= Run rate (both)
W= Walk rate (both)
R?W= Running is faster
Use this to help: find a substitute R?W and plug it in for R and W.
Fred
D/2 = AW = BR
Ethyl
D = C/2W + C/2 R
AW + BR = CW/2 + CR/2
Two big hints: Ethyl wins because Fred takes more time. Running is faster than walking but you have to write a proof how ethyl wins.
This is going to be a big proof and my teacher says it took him 2 hours. show work also please so i know how you got the answer. and PLEASE BE CORRECT Thanks soo much