Help on math problems please!

[crazyj0n]

Before anyone gives me shit about not doing my own homework, i just want to say I've been doing the pascals triangle/perfect squares crap all day and i don't know how they relate with these problems. If anyone can answer any of these it would be greatly appreciated.

If a family has 10 children, in how many ways could the parents have 6 boys and 4 girls as children?
edit: figured it out.... 210
If a family has 8 children, in how many ways could the parents have 6 boys and 2 girls as children?
edit: figured it out... 28
Suppose you have written down all the numbers from 1 to 15,000. What is the total number of sixs you have recorded?

Can anyone figure this one ^^^^^

 

[codyPKA]

**** that shit i'm wayyyy to drunk

 

[crazyj0n]

Damn... I picked the wrong weekend to ask help on homework..
come on, when all three are answered ill post tits!

 

[20-COBRA-03]

i cant count that high

 

[roushcobra2003]

2850. There's 19 6's in a 100. 15000/100 = 150 times 19.

 

[crazyj0n]

2850. There's 19 6's in a 100. 15000/100 = 150 times 19.

Didn't work

i counted 20 6's

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

hmmm still didnt work

 

[roushcobra2003]

LOL o crap i forgot about the other 6 like 600. LOL, I thought you where SVTburnout wtf hahah. Hold on ill give you the real answer in alittle bit.

 

[roushcobra2003]

3030?

 

[crazyj0n]

Nope, i guessed 2776 ( 1 in the '15') (20 in the '150') (200 in the '1500') (2000 in the '15,000)
but i was wrong.. i have no clue how to do it.

got it, 5500 microsoft word + ctrl f

 

[ON D BIT]

going quickly i got 4920. but i propably lost some.

20(20 in 100) x 8 ~ 160 + 120(600's) ~ 280 per 1k

280 x 8 ~ 2240 + 1280(6000's) ~ 3520

280 x 5(10, 11, 12, 13, 14, up to 15k) ~ 1400

3520 + 1400 ~ 4920

 

[James Snover]

Wolfram|Alpha

Math Help Forum

These have become two of my most used resources.

Jim Snover

 

[THNDRRR]

...come on, when all three are answered ill post tits!

Women's tits, I hope.... :shrug:

....got it, 5500 microsoft word + ctrl f

Wouldn't that make it "all three" ? :shrug:

We're waiting..... :banana::banana::banana:

 

[txyaloo]

suppose you have written down all the numbers from 1 to 15,000. What is the total number of sixs you have recorded?

Can anyone figure this one ^^^^^

366

 

[mmoore1545]

i believe 4100 and u can call me if u want cause it tolong to explain on here pm for my cell

 

[mmoore1545]

or maybe 5480 unless i did the math wrong(diff. than first idk how but it was) but im confident its one of my 2 answer and if there both wrong oh f'n well

 

[ponygt65]

Ok..not to sound like an ass....ok, yes I am.....WTF would you need to know how many 6s are in 15000 for? I mean seriously.

And I LOVE math. That and history was my favorite subject, but WTH.

 

[BigSweezey]

4150

 

[txyaloo]

Come on people.... do it the easy way. Put it in excel. In cell A1 type 1. In cell A2 type =a1+1 then drag it down until the numbers equal 1500.

Then edit>find Find what = 6. Click options. Tell it to search by Values. Now click find all. Boom. There's your number. 366

Edit: Make that 4792. I didn't go all the way down to 15000.

 

[James Snover]

I think it's a trick question. The number 6 appears only once between 1 to 15,000; or one to infinity; or one to seven. A check to see if you are over-thinking a problem. The statement as you posted it only asked for six, not numbers with the symbol for six as part of that number's expression. By definition any two-digit number, whether it has the symbol for six in it or not, is not six.

You sure you worded it exactly as it was written? Does your prof have a sense of humor?

Jim Snover

Before anyone gives me shit about not doing my own homework, i just want to say I've been doing the pascals triangle/perfect squares crap all day and i don't know how they relate with these problems. If anyone can answer any of these it would be greatly appreciated.

If a family has 10 children, in how many ways could the parents have 6 boys and 4 girls as children?
edit: figured it out.... 210
If a family has 8 children, in how many ways could the parents have 6 boys and 2 girls as children?
edit: figured it out... 28
Suppose you have written down all the numbers from 1 to 15,000. What is the total number of sixs you have recorded?

Can anyone figure this one ^^^^^

 

[Niks97cobra]

Did someone say tits?