Math Is Fun Forum
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#26 2005-04-14 06:57:02
- Roraborealis
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- Registered: 2005-03-17
- Posts: 1,594
Re: need help!!!
But then won't the guests vote for stewie instead of you?
School is practice for the future. Practice makes perfect. But - nobody's perfect, so why practice?
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#27 2005-04-14 06:59:20
- Mr T
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- Registered: 2005-03-30
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Re: need help!!!
its in the members only section. see i am always thinking!!!
I come back stronger than a powered-up Pac-Man 
I bought a large popcorn @ the cinema the other day, it was pretty big...some might even say it was "large
Fatboy Slim is a Legend
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#28 2005-04-14 07:01:36
- static helper
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- Registered: 2005-04-14
- Posts: 27
Re: need help!!!
i didnt join to make fun of you.
Vote Stewie 
and Mr T and static helper
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#29 2005-04-14 07:04:01
- Mr T
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- Registered: 2005-03-30
- Posts: 1,012
Re: need help!!!
u joined bCoz u luv maths. weren't you a member before the E=tally=3 incident
I come back stronger than a powered-up Pac-Man
I bought a large popcorn @ the cinema the other day, it was pretty big...some might even say it was "large Fatboy Slim is a Legend
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#30 2005-04-14 07:11:01
- static helper
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- Registered: 2005-04-14
- Posts: 27
Re: need help!!!
no i was on it at school. we got shown it to do sats revision. i joined when i got home
Vote Stewie and Mr T and static helper
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#31 2005-04-14 07:15:57
- Mr T
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- Registered: 2005-03-30
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Re: need help!!!
wat yr r u in.
I come back stronger than a powered-up Pac-Man
I bought a large popcorn @ the cinema the other day, it was pretty big...some might even say it was "large Fatboy Slim is a Legend
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#32 2005-04-14 07:17:56
- static helper
- Member
- Registered: 2005-04-14
- Posts: 27
Re: need help!!!
yr 9 sats time AHHHHhhh
better be going. tlk 2morrow MAYBE!! spooky, i could be dead!
Vote Stewie and Mr T and static helper
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#33 2005-04-14 07:19:08
- Mr T
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- Registered: 2005-03-30
- Posts: 1,012
Re: need help!!!
vote B4 u leave!!!
I come back stronger than a powered-up Pac-Man
I bought a large popcorn @ the cinema the other day, it was pretty big...some might even say it was "large Fatboy Slim is a Legend
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#34 2005-04-14 07:56:17
- stewie
- Member
- Registered: 2005-03-28
- Posts: 820
Re: need help!!!
how pathetic
HAPPY HAPPY, JOY JOY Fatboy Slim is the band of the 90s, thats if you want to call it a band because its really a one man name
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#35 2005-04-14 19:13:32
- mohit
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- Registered: 2005-04-13
- Posts: 7
Re: need help!!!
Caroline drove 50 miles to her mother's house at an average speed of 40 miles per hour, and she drove back on the same route at an average speed of 60 miles per hour. What was her average speed for the entire trip, in miles per hour?
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#36 2005-04-14 19:52:11
- MathsIsFun
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- Registered: 2005-01-21
- Posts: 7,713
Re: need help!!!
There: 50 mi at 40 mi/h = 1.25h,
Back Again: 50 mi at 60 mi/h = 0.8333... h,
There and Back: 100 mi, taking 1.25h + 0.8333... h = 2.08333... h
Speed: 100 / 2.08333 ... = 48 mph DONE
By the use of my trusty calculator.
Who thought it should be the average of 40 and 60 = 50 mph ??
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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#37 2005-04-16 03:56:34
- Roraborealis
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- Registered: 2005-03-17
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Re: need help!!!
I didn't really know how to do the question.
School is practice for the future. Practice makes perfect. But - nobody's perfect, so why practice?
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#38 2005-04-16 11:02:17
- Zach
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- Registered: 2005-03-23
- Posts: 2,075
Re: need help!!!
I thought that I wouldn't answer the question.
I mean, Yea.. I thought it was going to be 48. Of course.
Boy let me tell you what:
I bet you didn't know it, but I'm a fiddle player too.
And if you'd care to take a dare, I'll make a bet with you.
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#39 2005-04-16 22:02:32
- Roraborealis
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- Registered: 2005-03-17
- Posts: 1,594
Re: need help!!!
Oh, of course you did.
School is practice for the future. Practice makes perfect. But - nobody's perfect, so why practice?
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#40 2005-12-07 13:59:07
- irspow
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- Registered: 2005-11-24
- Posts: 1,055
Re: need help!!!
I was just browsing for interesting posts in the past and I noticed that this one was never really answered. The question asked how far the boy had walked.
let v be the velocity of the boy
D/v = t1
D/(4v/3) = 3D/4v = t2
delta t = t1 - t2
we know that delta t = 4/3 and it also equals D/v - 3D/4v
4/3 = D/v - 3D/4v
4/3 = D/4v
D = 16v/3 = 48km
I am at an age where I have forgotten more than I remember, but I still pretend to know it all.
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