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#1 2013-03-07 09:11:27
- Abby ❤ Choco
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Mean Values
Please show me the solution and explain.
The mean of A and B is 40
The mean of B and C is 35
A +B+C=100
Calculate the values of A,B and C
#2 2013-03-07 09:16:32
- bobbym
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Re: Mean Values
Hi;
A = 30
B = 50
C = 20
Welcome to the forum.
Easiest solution is by setting up 3 simultaneous equations and solving them.
Last edited by bobbym (2013-03-07 09:21:18)
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#3 2013-03-07 09:22:11
- bob bundy
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Re: Mean Values
hi Abby ❤ Choco
Welcome to the forum.
I would do this:
adding gives
After which it should be easy enough to get A and C.
Cool user name by the way!
Bob
Last edited by bob bundy (2013-03-07 09:25:21)
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#4 2013-03-07 09:37:35
- Abby ❤ Choco
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Re: Mean Values
Hi Admin Bob. Sorry but the answer you posted was incomplete or blank after "adding gives"... Which still left me pondering as how you got the values of A B and C. I'm still in Yr6 here in UK you see so I need a detailed solution. My Dad is helping me with this forum but unfortunately cannot help me with the math problems :-)
#5 2013-03-07 09:38:33
- bobbym
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Re: Mean Values
Can you solve the set of equations? Do you need help there?
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#6 2013-03-07 09:45:02
- Abby ❤ Choco
- Novice
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Re: Mean Values
Ok weird but your solution has come up after I posted the remark.
Thank you.
#7 2013-03-07 09:45:54
- bobbym
- Administrator
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Re: Mean Values
Are you okay with those equations?
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#8 2013-03-07 09:47:47
- bob bundy
- Moderator
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Re: Mean Values
I suspect three simultaneous equations is a bit tough for Abby.
Give her a year or two on the forum and she'll be fine.
Hope you have got there now, Abby
Bob
ps. Now why didn't I think of that user name? really cool.
Last edited by bob bundy (2013-03-07 09:48:12)
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#9 2013-03-07 09:50:08
- bobbym
- Administrator
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Re: Mean Values
Hi;
Bob, she skedoodled out of the forum.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#10 2013-03-07 09:55:17
- bob bundy
- Moderator
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Re: Mean Values
She got what she wanted. I think she'll be back next time her 'horrid' teachers set another nasty one. (Don't forget; I know what an evil bunch they are )
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#11 2013-03-07 09:58:13
- bobbym
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Re: Mean Values
Teachers are always doing that. Trying to force someone to think. It is evil and soon will be outlawed.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#12 2013-03-07 10:00:33
- Abby ❤ Choco
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Re: Mean Values
Hey guys! I got it! Thanks again!
Will be posting for other horrid math problems soon! 👽
#14 2013-03-07 10:01:39
- bobbym
- Administrator
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Re: Mean Values
Tell your teachers I am watching them, closely.
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#16 2013-03-07 20:41:23
- Abby ❤ Choco
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Re: Mean Values
I'm back and I need to know how to get the value of A and C? What is the equation for getting it?