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A B and C represent three numbers. The mean of A, B and C is A. Caculate the mean of B and C.
Thanks hope u can help.;)
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What does it mean to have the mean be A? Pretty simple, it's:
Now just solve that equation for:
In other words, you want to solve that equation for B + C, then divide both sides by 2.
"In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..."
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I need the answer
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Use Ricky's first equation and try to find an expression for B+C in terms of just A.
Splitting the left side to get
would be a good starting point.Why did the vector cross the road?
It wanted to be normal.
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Think points on a ruler.
If middle is A, then A is in the middle, and B is left and C is right same distance.
There is no other way!
So easy, B average C is A too!
God I'm smart.
igloo myrtilles fourmis
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Dividing both sides by 2, we have
So the mean of B and C is also A.
http://www.idealmath.com
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