10-12-2009, 16:23
|
#1
|
|
cf.mega poster
Join Date: Jan 2004
Age: 50
Posts: 1,998
|
Formula Maths X-Y
Hi all
Hope this makes sense............... !!!!
I have 8 apples from my tree last year but year year I only had 3 
How is the % reduction show in terms of a formula ie x-y*100/x ?????
Thanks
Mike
|
|
|
|
10-12-2009, 16:26
|
#2
|
|
Cable Forum Team
Join Date: Dec 2007
Age: 43
Posts: 16,277
|
Re: Formula Maths X-Y
Yep... X - y equals the original 8 minus 3 = a reduction of 5 apples
100/x = 100/8 = 12.5 Which is how many percent of the original group 1 apple represents..
So the reduction of 5 multiplied by the the percentage that one apple represents which is 12.5% = a reduction of 62.5%
(8-5)*(100/8) = 62.5
|
|
|
|
|
10-12-2009, 16:28
|
#3
|
|
cf.mega poser
Join Date: Jun 2003
Posts: 14,718
|
Re: Formula Maths X-Y
What's this for?
The question is rather strangely worded. The percentage reduction is 5/8= 62.5%
|
|
|
|
|
10-12-2009, 16:31
|
#4
|
|
Cable Forum Team
Join Date: Dec 2007
Age: 43
Posts: 16,277
|
Re: Formula Maths X-Y
It's simplified too much... The brackets are missing on the equation
|
|
|
|
|
10-12-2009, 16:37
|
#5
|
|
cf.mega poser
Join Date: Jun 2003
Posts: 14,718
|
Re: Formula Maths X-Y
Quote:
Originally Posted by Kymmy
It's simplified too much... The brackets are missing on the equation
|
Yes, but it doesn't make any sense to express it as a linear equation. It should be something like y = 8 - .625x, but x hasn't been defined. It's a poorly worded question.
|
|
|
|
|
10-12-2009, 16:45
|
#6
|
|
cf.mega poster
Join Date: Jan 2004
Age: 50
Posts: 1,998
|
Re: Formula Maths X-Y
Quote:
Originally Posted by danielf
What's this for?
The question is rather strangely worded. The percentage reduction is 5/8= 62.5%
|
Oh...............
So
X/Y * 100 = 62.50 !
Thanks
Mike
|
|
|
|
|
10-12-2009, 21:05
|
#7
|
|
cf.mega poster
Join Date: Sep 2003
Location: Near Hungerford, West Berkshire
Services: TV: Sky HD, Landline: BT,
Mobile: Orange, Internet: Quite Slow!
Posts: 6,331
|
Re: Formula Maths X-Y
Sounds like a homework thread.....but the OP is 47!!!
__________________
Cheers,
Lee
Please take a look at my photography site and leave me some feedback.
|
|
|
|
|
11-12-2009, 21:35
|
#8
|
|
vox populi vox dei
Join Date: Mar 2007
Location: the last resort
Services: every thing
Posts: 5,477
|
Re: Formula Maths X-Y
what sort of apples are they .
__________________
“First they ignore you, then they laugh at you, then they fight you, then you win.”
|
|
|
|
|
11-12-2009, 21:46
|
#9
|
|
cf.mega poster
Join Date: Sep 2003
Location: Near Hungerford, West Berkshire
Services: TV: Sky HD, Landline: BT,
Mobile: Orange, Internet: Quite Slow!
Posts: 6,331
|
Re: Formula Maths X-Y
Quote:
Originally Posted by papa smurf
what sort of apples are they .
|
Not edible if they are year old!
__________________
Cheers,
Lee
Please take a look at my photography site and leave me some feedback.
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT +1. The time now is 06:31.
|
Join CF
You are here: 
