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Idle Banter For non SV and non bike related chat (and the odd bit of humour - but if any post isn't suitable it'll get deleted real quick). There's also a "U" rating so please respect this. Newbies can also say "hello" here too. |
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21-01-09, 11:09 AM
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#1 |
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Guest
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maths question?
if i was to do miles (5km) in 27 mins
whats the formula for working out..... mph and kmph 
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21-01-09, 11:12 AM
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#2 |
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Guest
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Re: maths question?
speed = distance / time (miles / hours or kilometers / hours)
given that 27 mins is approx. 0.5 hours, 5km / 0.5 hrs = 10 k/h (kph) conversion factor 1 mile = approx. 1.6 kph 5 / 1.6 = ? miles |
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21-01-09, 11:12 AM
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#3 |
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Captain Awesome
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Join Date: Jan 2007
Location: Hamble
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Re: maths question?
speed = distance divided by time
1mile = 1.6km 1hour = 60 minutes therefore your speed in km per minute is 5 divided by 27 = 0.185... multiply by 60 to get km per hour = 11.1... divide by 1.6 to get miles per hour = 6.94... so ~7mph
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Official "Dumbass of the Year" 2011 (•_•) ( •_•)>⌐■-■ (⌐■_■) Deal with it... |
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21-01-09, 11:14 AM
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#4 |
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Member
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Location: Northampton
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Re: maths question?
Kms Covered/Time = km per min
m per min x 60 = m per hour you were doing 11.11kph. To convert it to MPH you kph/8 then multiply by 5. = 6.875mph
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21-01-09, 11:15 AM
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#5 | |
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Member
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Join Date: Jul 2006
Location: Sunny Croydonia
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Re: maths question?
Quote:
To get kmph from that just multiply by 60 = 11.1 kmph Then just apply the conversion from km to mls where 1kmph = 0.621mph Leaves you with 6.9mph
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21-01-09, 11:15 AM
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#6 |
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Guest
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Re: maths question?
My calculations:
For Km. (60/27) x 5 =11.111... (kmph) For Miles. 5km=3.1 miles, so (60/27) x 3.1 = 6.8 (Mph) |
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21-01-09, 11:16 AM
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#7 |
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Guest
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Re: maths question?
where was u going at 7mph hovis?
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21-01-09, 11:16 AM
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#8 | |
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Member
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Re: maths question?
Quote:
c-
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21-01-09, 11:16 AM
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#9 | |
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Guest
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Re: maths question?
Quote:
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21-01-09, 11:17 AM
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#10 |
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Guest
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Re: maths question?
but his working out means he'll pass...ah, good ol' GCSE's.
although, i'd ratyher have someone builidng my aircraft who got the right answer but negected to show his/her working out... |
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