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Atheist Forums › Science › Mathematics v
Can you solve this problem ? (read)

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Can you solve this problem ? (read)
reality.Mathematician Offline
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#1
Can you solve this problem ? (read)
June 19, 2014 at 4:28 am (This post was last modified: June 19, 2014 at 4:33 am by reality.Mathematician.)
Two cars are 150km away from each other and they are going to the same(direction,vector,....).The first car is going 70km/h and the second car is going 20km/h. After x-hours the first car would catch the second car and they would be at the same point. Find x=?
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pocaracas Offline
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#2
RE: Can you solve this problem ? (read)
June 19, 2014 at 4:33 am
Isn't this the sort of math problem we solve in 7th grade?

x1 = 0 + 70*t
x2 = 150 + 20*t

x1 = x2 <=> 70t = 150 + 20t
50t = 150
t = 3 hours
x1 = 70 * 3 = 210km
x2 = 150 + 2*3 = 150 + 60 = 210km
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reality.Mathematician Offline
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#3
RE: Can you solve this problem ? (read)
June 19, 2014 at 4:34 am
(June 19, 2014 at 4:33 am)pocaracas Wrote: Isn't this the sort of math problem we solve in 7th grade?

x1 = 0 + 70*t
x2 = 150 + 20*t

x1 = x2 <=> 70t = 150 + 20t
50t = 150
t = 3 hours
x1 = 70 * 3 = 210km
x2 = 150 + 2*3 = 150 + 60 = 210km
Correct
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LastPoet Offline
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#4
RE: Can you solve this problem ? (read)
June 19, 2014 at 4:38 am
Not if one car gets a flat tire. Big Grin
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Sejanus Offline
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#5
RE: Can you solve this problem ? (read)
June 19, 2014 at 4:44 am (This post was last modified: June 19, 2014 at 4:45 am by Sejanus.)
I'm ignoring the OP. poca, have a go at this one (if you feel like it)

[Image: thfrog.gif]



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Little lunch Offline
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#6
RE: Can you solve this problem ? (read)
June 19, 2014 at 4:49 am
7th grade, seriously? Looks like I'm gonna have to start saving now for tutors for my kid.
Judging from that it'll be from grade 4-12.
That's if she makes it that far with half my genes. :-)
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BrianSoddingBoru4 Offline
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#7
RE: Can you solve this problem ? (read)
June 19, 2014 at 4:57 am
Here's another maths question:

A linguistically, grammatically challenged mathematicient [sic] at twice the speed of sound (as measured through diesel oil) approaches an atheist message board. Negating air resistance, how long will it take him to explain how arithmetic problems 'beat religion'?

Solve for x.

Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson
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LastPoet Offline
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#8
RE: Can you solve this problem ? (read)
June 19, 2014 at 4:59 am
Why all this thread bombing? Dodgy
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pocaracas Offline
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#9
RE: Can you solve this problem ? (read)
June 19, 2014 at 5:00 am
(June 19, 2014 at 4:44 am)Sejanus Wrote: I'm ignoring the OP. poca, have a go at this one (if you feel like it)

My thermodynamics teacher sucked big time... I never learned anything decent... still made it through with a decent grade... not knowing anything.... kinda makes you wonder, huh?
Now, I'm more in data analysis... big calculations to extract physical quantities out of diagnostic data... for fusion plasmas... don't really need thermodynamics! Tongue

Besides, I have no idea what T_C and T_H stand for in there.
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reality.Mathematician Offline
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#10
RE: Can you solve this problem ? (read)
June 19, 2014 at 5:05 am
(June 19, 2014 at 4:57 am)BrianSoddingBoru4 Wrote: Here's another maths question:

A linguistically, grammatically challenged mathematicient [sic] at twice the speed of sound (as measured through diesel oil) approaches an atheist message board. Negating air resistance, how long will it take him to explain how arithmetic problems 'beat religion'?

Solve for x.

Boru
How long would it take ??? How long = 0 or t=0
THere's no need to explain ... every smart-ass knows those things
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Atheist Forums › Science › Mathematics v
Can you solve this problem ? (read)

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