
03032013, 08:42 PM  #31  
Go Beavers!
Join Date: Jan 2001
Location: Warshington
Casino cash: $18343

Quote:


Posts: 11,389

03032013, 08:48 PM  #32 
www.nflforecast.com
Join Date: Sep 2000
Casino cash: $31869

How long would they get to work a problem like that?

Posts: 34,333

03032013, 09:00 PM  #33 
Space Cadet and Aczabel
Join Date: Aug 2000
Location: Kansas City, Mo, USA
Casino cash: $43375
VARSITY

Thats fairly easy twice the speed or 2x

Posts: 29,856

03032013, 09:05 PM  #34 
Go Beavers!
Join Date: Jan 2001
Location: Warshington
Casino cash: $18343

That's one of 40 questions on the test that they get 35 minutes to complete. The final 10 are challenge questions where they get extra points if they complete them. That question was the final challenge question.
Here is a link to the test if you are interested: http://www.wamath.net/contests/Mathi...IC03_78Reg.pdf If I had graphed out that question, it would have been more obvious how to tackle it. 
Posts: 11,389

03032013, 09:05 PM  #35 
Go Beavers!
Join Date: Jan 2001
Location: Warshington
Casino cash: $18343


Posts: 11,389

03032013, 09:14 PM  #36 
Post Draft free agents WINNING
Join Date: Dec 2005
Location: Missoula, Montana
Casino cash: $18607

eleventy billion
__________________
Posted via Slingshot using Rocks 
Posts: 6,013

03032013, 09:14 PM  #37 
www.nflforecast.com
Join Date: Sep 2000
Casino cash: $31869

[QUOTE=Frosty;9461659]That's one of 40 questions on the test that they get 35 minutes to complete. The final 10 are challenge questions where they get extra points if they complete them. That question was the final challenge question.
Here is a link to the test if you are interested: http://www.wamath.net/contests/Mathi...IC03_78Reg.pdf If I had graphed out that question, it would have been more obvious how to tackle it.[/QUOTE] Sketches really help more often than not. Your wife should incorporate sketches into her teaching. Sketch or no sketch, that isn't a one or two minute problem, at least for me. 
Posts: 34,333

03032013, 09:16 PM  #38 
Go Beavers!
Join Date: Jan 2001
Location: Warshington
Casino cash: $18343


Posts: 11,389

08312013, 07:24 PM  #39 
Go Beavers!
Join Date: Jan 2001
Location: Warshington
Casino cash: $18343

Got another one we need help on 
"How many positive integer factors does the cube of the square of 2007 have?" We can brute force out the answer but there has to an easier way to do it and to explain it to the kids. TIA 
Posts: 11,389

08312013, 08:25 PM  #40 
www.nflforecast.com
Join Date: Sep 2000
Casino cash: $31869

Is the answer 70?

Posts: 34,333

08312013, 08:32 PM  #41 
www.nflforecast.com
Join Date: Sep 2000
Casino cash: $31869

Now I'm going with 91.

Posts: 34,333

08312013, 08:32 PM  #42 
Go Beavers!
Join Date: Jan 2001
Location: Warshington
Casino cash: $18343


Posts: 11,389

08312013, 08:33 PM  #43 
Go Beavers!
Join Date: Jan 2001
Location: Warshington
Casino cash: $18343


Posts: 11,389

08312013, 08:35 PM  #44 
www.nflforecast.com
Join Date: Sep 2000
Casino cash: $31869

Can the kids factor 2007 into 3x3x223 quickly?

Posts: 34,333

08312013, 08:39 PM  #45 
www.nflforecast.com
Join Date: Sep 2000
Casino cash: $31869

If so 2007^3^2 = 2007^6
now factoring into primes 2007^6 = 223^6 * 3^2^6 = 223^6 * 3^12 once you've expressed a number as a product of primes raised to exponents, there is a trick where you add 1 to each exponent and multiply to get the number of factors (6+1) * (12+1) = 7*13 = 91 
Posts: 34,333

Thread Tools  
Display Modes  

