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01102007  #1 
Join Date: Oct 2006
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Math contest/problemsNow Over
I'm thinking of holding a contest sort of thing
where there are going to be 6 rounds of 5 questions each, and at the end the top 3 winners will recieve 5000, 4000, and 3000 points respectively just private message me your answers only people in grades 8 and under can join! i will post the first round in a few days, and i will wait for 5 days for people to message me the answers! Hopefully it will work out!
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The Following User Says Thank You to Sillysidley For This Useful Post:  zacmarz (02082012) 
01132007  #2 
Join Date: Oct 2006
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the first contest
private message me the answers you get...
1. If x=2, y=3, and z=12, what is xyz+xz? 2. If there was a class of 923 people who had a test, and whoever score above the average get a treat, what is the highest number of people who can get a treat? There is no rounding involved, the average can be a decimal with a billion decimal places for all i care. 3. If someone wakes up at x a.m., and goes to sleep at x p.m., how long does he stay up? 4. If x=y, what is x to the power of xy?x and y do not equal 0. 5. What is the yintercept of the line x=5y17? These could be hard, but its a waste of time to have an easy contest!
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. Last edited by Sillysidley; 01132007 at 08:57 PM.. 
The Following User Says Thank You to Sillysidley For This Useful Post:  zacmarz (02082012) 
01152007  #4 
Join Date: Oct 2006
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good job you got them all right!
Here's the next set (people can still PM me the answers for the first) 1. What is the units digit of 7*9*11...*1999*2001*2003 2. What is the base 10 representation of 510 base 5? 3. If f(2x+1)=(x7)(x+5), what is f(63)? 4. How many toatal degrees are in a pentagon? 5. There is a nsided figure with 10n diagonals? How many diagonals does it have? What about this Archive?
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The Following User Says Thank You to Sillysidley For This Useful Post:  zacmarz (02082012) 
01152007  #7 
Join Date: Oct 2006
Posts: 822
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Thanked 893 Times in 553 Posts

Contest number 3:Super Hard!
This will probably be hard.
1. A triangle ABC has sides x,x+2, and 4. Cos (angle bac)=(x+8)/(2x+4). Determine all posible values of x. Write your proof when you send this. 2.On planet X, aliens us the same operations we do (+,,*, and /) and an operation @. Scientists have determined that the following are true for all rl numbers a and b. a@0=a a@b=b@a (a+1)@y=(a@y)+y+1 what is 12@5? 3. What is 16^3/4 (16 to the power negative 3/4) 4. An aquarium has a rectangular base that measures 100cm by 40cm, and a height of 50cm. The aquarium is filled to a depth of 37 cm. A rock with volume 1000cm^3 is put in the aquarium and completely submerged. By how amny cm does the water level rise? 5. Pete sells 3 tacos and 2 sandwiches for $5.15. He also sells 3 sandwiches and 2 tacos for $2. 85. How much does 2 tacos and 1 sandwich cost for? Assume there is a fixed rate.
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The Following User Says Thank You to Sillysidley For This Useful Post:  zacmarz (02082012) 
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