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omg i hate math so much.... we need to turn it in this week... can anyone help me solve as much problems as you can. thank u all... god bless u!

hmm too tired to think now but i think i got 4

7 children: 3 girls, 4 boys

each boy has 3 sister for 3 brothers

each girl has 2x brother for each sister (so 2 sister x 2 = 4 brothers)

Capslock critted my help for 100k, my help is dead.

i hate these kind of questions.. i'm out,

call nuclearsilo

Q1
2008/2 = 1004
1004/2 = 502
502/2 = 251

=> 2008 = 2*2*2*251

Now let's search for the divisor of 251. Try 251 / {2;3;5;7;11;13}
We stopped at 13 because 251 < 16² and we know that it won't be divided by 14,15,16.
So we found none divisor => 251 is a prime number.

The last result 2008 = 2*2*2*251
=> his 8 divisors is
2
2*2
2*2*2
2*2*2*251
1
251
251*2
251*2*2



Q2
There are 2 ways to do it, one is to convert all to base 10, add then convert back to base 8, one is to convert all to base 8 then add
I'd do the 2nd, since i know how to add numbers in base 8. If you don't do 1st method
132(4) = 1*16 + 3*4 + 2 = 2*8 + 14 = 3*8 + 6 = 36(8)
1011(2) = 1*8 + 0*4 + 1*2 + 1 = 1*8 + 3 = 13(8)

=> 66(8) + 36(8) + 13(8) = 137(8)



Q3
M = 5*X + 2
N = 5*Y + 4
M+N = 5*(X+Y) + 6 = 5*(X+Y) + 5+1 = 5*(X+Y+1) + 1

=> 1


Q4
each boy has many sisters as brothers
=> even number of sister&brother
=> nb of children: X = 1 + A + A

A = number of girl
A+1 = number of boy
the possible couples (boy,girl) are: (1,0),(2,1),(3,2),(4,3),...,(A+1,A)

twice brother as sister
=> A+1 = 2(A-1)
=> A=3

the couple is (4,3) (a girl has 4 brothers and 2 sisters and a boy has sister=brother)
Nb children = 7



Q5
Easiest clue: the boy in white shirt... => 1 boy is white shirt, other boy is black (different color) otherwise there won't be solution
Need a table to resolve this problem. (there is no method)

(a)3 whites 2 blacks
(b)2 couples possible (white,black) or (black,white). Let's randomly choose the 1st and go on
(c)(white,white) or (black,black). It must be white,white since one of the guy from (b) chose black, it cant be 3 blacks
(d)same gender, let's say male,male. But if carry is male and wear black shirt, pita must be male and wear white shirt
But if Pita wear white, we got 4 whites so not work. Try girl,girl (make sure you draw a table to see what i'm talking about)
(e)Let's say miken boy, jamie girl. The rest (Bary) is boy (since we had 3 girls in table). Now we fill the table. Pita don't have color yet, since we had 3 whites so he could only be black
Miken and Bary are both boy and both white shirt. That's not what we expected so we had to modify Miken (we dont have much choice for Bary)
So let's target Miken
=> return to case (b) => miken black shirt, carry white
(c) still works since white,white is the only choice
(d) pita caryy same gender => let's say male,male
(e)jamie miken different gender => we got 2 male already so (d) must be girl,girl
Jamie is white shirt, miken black shirt so let's say jamie boy, miken girl
Fill the rest of the table, Bary white boy, Jamie white boy too so not work
It must be Jamie girl, miken boy. Fill the rest, Bary white boy
Everything works well now, 2 boys are Miken and Bary. Bary is white so he is the answer.




Q6
Not sure what you mean by radii, radius?
(PI*1²)/(Pi*4²)=1/16


Q7
35
(well just learn how to count)


Q8
After 4 years you mean?
X=salary
year1:X*1.1
year2:X*1.1*1.1
..
year4:X*1.1*1.1*1.1*1.1=X*1.4641
=>46.41%


Q9
X*0.8*1.25=X
no gain


Q10
1day=24*60*60=86400s
1day=20*40=800 winks
=>1 wink = 86400/800=108s


Q11
the left side pattern is 1+2+4+6+8+...= 1+2*(1+2+3+...)
the right side pattern is 1+4+6+8+...= 1+2*(2+3+4+...)

1+2*(1+2+3+...) <= 289 <= 1+2*(2+3+4+...)
2*(1+2+3+...) <= 288 <= 2*(2+3+4+...)
1+2+3+... <= 144 <= 2+3+4+...
(1+X)*X/2 <= 144 <= (2+X+1)*X/2
(1+X)*X <= 288 <= (3+X)*X

Simply resolve inequation (1+X)*X <= 28 and 288 <= (3+X)*X. You do it. The answer is X=16
The row we search is X+1= 17th row


Q12
When place on bookshelf, A front cover is on the right side, back cover of Z is on the left side.
backA frontA - backB frontB - ... - backY frontY - backZ frontZ
Not sure if I inderstand correctly english. He eats frontA and backZ
=> 1/4 + (from backB to frontY is 2*24=48) + 1/4 = 48.5 inches


Q13
10² + 24² = 26²
quare rectangle => Farking easy
area=10*24/2=120
rectangle long = 120/3=40
=>perimeter=3*2+40*2=86


Q14
don't understand the question
(1/2)/(2/3)=3/4=0.75?


Q15
X - 1/4X - 11/18(X-1/4X) - 3 = 1/24X
X=12 (do it yourself)


Q16
this is a probability question, i forgot the formula, so ask someone else


Q17
1+2+3+4+...+X = (1+X)*X/2 = 66
(1+X)*X*132
X=11

(for 2 people, 1 shake. 3 people 1+2 shake... => 12 people in party)


Q18
not understand


Q19
total score=30*4=120
his score= n*4-m
ratio= (4n-m)/120

16. the answer should be 1260 if I'm not mistaken. google combinations/permutations

18. http://www.rhlschool.com/math6n15.htm

mean should be 83

to get the median you have to get the "mean" of the 5th and 6th number since theres 10 numbers

so median = 82

You guys are actually doing his homework?

bakafish wrote:You guys are actually doing his homework?

What else are we here for? :p

bakafish wrote:You guys are actually doing his homework?

nah, they are showing whos the most intelligent on this forum lol
We have a lot of cookies

im sure others are smarter, they just dont wanna help

anyways what math class are you taking? we dont do that kind of puzzle things in our math classes

6: Area: 1 = 1^2 * Pi = 3.14 inch2
2 = 2^2 * Pi = 12.57 inch2
3 = 3^2 * Pi = 28.27 inch2
4 = 4^2 * Pi = 50.27 inch2
Hmmz You dont need area 2 and 3 actualy, but I just calculated them
Area Good / Total Area = 3.14 / 50.27 = 0.0625

9: No loss/gain, just as NuclearSilo said: X*0.8*1.25=X

14: Make the same fractions: 3/6 (1/2) and 4/6( 2/3)
Take 4/6 as 100%, then how much % is 3/6? 75%., so you can make 75% or 3/4th

Dont feel like doing any others, those seemed as simple to me.

NuclearSilo wrote:Q1
2008/2 = 1004
1004/2 = 502
502/2 = 251

=> 2008 = 2*2*2*251

Now let's search for the divisor of 251. Try 251 / {2;3;5;7;11;13}
We stopped at 13 because 251 < 16² and we know that it won't be divided by 14,15,16.
So we found none divisor => 251 is a prime number.

The last result 2008 = 2*2*2*251
=> his 8 divisors is
2
2*2
2*2*2
2*2*2*251
1
251
251*2
251*2*2



Q2
There are 2 ways to do it, one is to convert all to base 10, add then convert back to base 8, one is to convert all to base 8 then add
I'd do the 2nd, since i know how to add numbers in base 8. If you don't do 1st method
132(4) = 1*16 + 3*4 + 2 = 2*8 + 14 = 3*8 + 6 = 36(8)
1011(2) = 1*8 + 0*4 + 1*2 + 1 = 1*8 + 3 = 13(8)

=> 66(8) + 36(8) + 13(8) = 137(8)



Q3
M = 5*X + 2
N = 5*Y + 4
M+N = 5*(X+Y) + 6 = 5*(X+Y) + 5+1 = 5*(X+Y+1) + 1

=> 1


Q4
each boy has many sisters as brothers
=> even number of sister&brother
=> nb of children: X = 1 + A + A

A = number of girl
A+1 = number of boy
the possible couples (boy,girl) are: (1,0),(2,1),(3,2),(4,3),...,(A+1,A)

twice brother as sister
=> A+1 = 2(A-1)
=> A=3

the couple is (4,3) (a girl has 4 brothers and 2 sisters and a boy has sister=brother)
Nb children = 7



Q5
Easiest clue: the boy in white shirt... => 1 boy is white shirt, other boy is black (different color) otherwise there won't be solution
Need a table to resolve this problem. (there is no method)

(a)3 whites 2 blacks
(b)2 couples possible (white,black) or (black,white). Let's randomly choose the 1st and go on
(c)(white,white) or (black,black). It must be white,white since one of the guy from (b) chose black, it cant be 3 blacks
(d)same gender, let's say male,male. But if carry is male and wear black shirt, pita must be male and wear white shirt
But if Pita wear white, we got 4 whites so not work. Try girl,girl (make sure you draw a table to see what i'm talking about)
(e)Let's say miken boy, jamie girl. The rest (Bary) is boy (since we had 3 girls in table). Now we fill the table. Pita don't have color yet, since we had 3 whites so he could only be black
Miken and Bary are both boy and both white shirt. That's not what we expected so we had to modify Miken (we dont have much choice for Bary)
So let's target Miken
=> return to case (b) => miken black shirt, carry white
(c) still works since white,white is the only choice
(d) pita caryy same gender => let's say male,male
(e)jamie miken different gender => we got 2 male already so (d) must be girl,girl
Jamie is white shirt, miken black shirt so let's say jamie boy, miken girl
Fill the rest of the table, Bary white boy, Jamie white boy too so not work
It must be Jamie girl, miken boy. Fill the rest, Bary white boy
Everything works well now, 2 boys are Miken and Bary. Bary is white so he is the answer.




Q6
Not sure what you mean by radii, radius?
(PI*1²)/(Pi*4²)=1/16


Q7
35
(well just learn how to count)


Q8
After 4 years you mean?
X=salary
year1:X*1.1
year2:X*1.1*1.1
..
year4:X*1.1*1.1*1.1*1.1=X*1.4641
=>46.41%


Q9
X*0.8*1.25=X
no gain


Q10
1day=24*60*60=86400s
1day=20*40=800 winks
=>1 wink = 86400/800=108s


Q11
the left side pattern is 1+2+4+6+8+...= 1+2*(1+2+3+...)
the right side pattern is 1+4+6+8+...= 1+2*(2+3+4+...)

1+2*(1+2+3+...) <= 289 <= 1+2*(2+3+4+...)
2*(1+2+3+...) <= 288 <= 2*(2+3+4+...)
1+2+3+... <= 144 <= 2+3+4+...
(1+X)*X/2 <= 144 <= (2+X+1)*X/2
(1+X)*X <= 288 <= (3+X)*X

Simply resolve inequation (1+X)*X <= 28 and 288 <= (3+X)*X. You do it. The answer is X=16
The row we search is X+1= 17th row


Q12
When place on bookshelf, A front cover is on the right side, back cover of Z is on the left side.
backA frontA - backB frontB - ... - backY frontY - backZ frontZ
Not sure if I inderstand correctly english. He eats frontA and backZ
=> 1/4 + (from backB to frontY is 2*24=48) + 1/4 = 48.5 inches


Q13
10² + 24² = 26²
quare rectangle => Farking easy
area=10*24/2=120
rectangle long = 120/3=40
=>perimeter=3*2+40*2=86


Q14
don't understand the question
(1/2)/(2/3)=3/4=0.75?


Q15
X - 1/4X - 11/18(X-1/4X) - 3 = 1/24X
X=12 (do it yourself)


Q16
this is a probability question, i forgot the formula, so ask someone else


Q17
1+2+3+4+...+X = (1+X)*X/2 = 66
(1+X)*X*132
X=11

(for 2 people, 1 shake. 3 people 1+2 shake... => 12 people in party)


Q18
not understand


Q19
total score=30*4=120
his score= n*4-m
ratio= (4n-m)/120

Those answers made me even more confused than the questions.

NuclearSilo wrote:Q1,Q2 etc

omfg I can't belive u did it all -,- not helping him learn lol!

here is a question for you all, what is the probability on nuclearsilo being asian?

user wrote:here is a question for you all, what is the probability on nuclearsilo being asian?

i wont believe it!

user wrote:here is a question for you all, what is the probability on nuclearsilo being asian?

Oh god...i feel it coming on...

OH MY GODDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD





oh god that was so good.

~jizz

t0rch wrote:

user wrote:here is a question for you all, what is the probability on nuclearsilo being asian?

Oh god...i feel it coming on...

OH MY GODDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

Spoiler!

oh god that was so good.

~jizz

WHAT OVER 9000!

damn nuclear -.- you make me feel stupid. you must've been really really bored to do all that neatly.

salmissra wrote:damn nuclear -.- you make me feel stupid. you must've been really really bored to do all that neatly.

Yeah, you're a hill, i'm a mountain =)

But i found this math interesting so i did it, in around 90 mins. Only Q5 consume time, in writing. Other are just easy.

lol nuclear figures everything out except 18 which even i got.

wootpops wrote:lol nuclear figures everything out except 18 which even i got.

HE probably just didn't understand the vocabulary... As the formula to solve the equation is ridiculously easy.
Or maybe he just didn't know the formula

hmmm. Nuclear how are you with Biology

Biology doesn't require any intelligence. It's about knowledge. I just have to google or wiki it

NuclearSilo wrote:Biology doesn't require any intelligence. It's about knowledge. I just have to google or wiki it

Biology requires intelligence and knowledge.

Even if you have the facts and the definitions strait you still need the intelligence to be able to connect the information.
To understand it you need a full understanding of all of the concepts and you need to be intelligent enough to make the connections.
Its not to easy to learn from a texbook.
Math on the other hand. You just need the knowledge of formulas.
Unless of course you have the intelligence to figure it out on your own. ~.`

uhm, try it, ask me a biology question

OKay.
What is the connection between photosynthesis and cellular respiration in plants?
Hint:

i told you it's easier to find solution of biology than math from the internet, it's just about knowledge

http://en.wikipedia.org/wiki/Photosynthesis

carbon dioxide and water; the energy source is sunlight (electromagnetic radiation); and the end-products are oxygen and (energy-containing) carbohydrates

Squirt wrote:

t0rch wrote:

user wrote:here is a question for you all, what is the probability on nuclearsilo being asian?

Oh god...i feel it coming on...

OH MY GODDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

Spoiler!

oh god that was so good.

~jizz

WHAT OVER 9000!

NO WAIIIIII!!!!

NuclearSilo wrote:i told you it's easier to find solution of biology than math from the internet, it's just about knowledge

http://en.wikipedia.org/wiki/Photosynthesis

carbon dioxide and water; the energy source is sunlight (electromagnetic radiation); and the end-products are oxygen and (energy-containing) carbohydrates

You didn't answer the question but I'm just going to go along with you.

nuclear, at least one of your solutions is wrong from a quick glance.

user wrote:here is a question for you all, what is the probability on nuclearsilo being asian?

hey why are you stereotyping? so u are saying only asians are smart?

Then fix it.