hba
If x is the average of k and 10,and y is the average of k and 4,what is the average of x and y,in terms of k ?



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hba
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@hartnn I do not even know how to translate this

hartnn
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that made my head spin....

hba
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x=k+10/2

hartnn
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k+10 = 2x
k+4=2y
(x+y)/2 = ?

hartnn
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add first 2 equations and divide by 4

hba
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first teach me how to translate it ?

hartnn
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x is the average of k and 10
x= (k+10)/2

hba
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Oh i got it :D

hartnn
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good :)

hba
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k+7/2 @hartnn >Right or wrong ?

hartnn
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(2k+14) /4 = k/2+7/2

hba
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haha it is the same lol Thanks :)

hba
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6.7times10^2=0.067 right or wrong ? @hartnn

hartnn
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right.