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OpenStudy (anonymous):
If x+y=a, y+z=b, and x+z=c, what is the average(arithmetic mean) of x, y and z?
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hartnn (hartnn):
add all the 3 equations, what you get ?
hartnn (hartnn):
also, average means you need to find (x+y+z)/3=...?
OpenStudy (anonymous):
a+b+c/6 ???
hartnn (hartnn):
that would be correct :) good!
OpenStudy (anonymous):
:) thanks
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hartnn (hartnn):
welcome ^_^
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