Asked by Grace
The average (arithmetic mean) of x and y is m, where m does not equal to 0. What is the average (arithmetic mean) of x, y, and z?
a.)m
b.)4/3m
c.)3/2m
d.)5/3m
e.)2m
a.)m
b.)4/3m
c.)3/2m
d.)5/3m
e.)2m
Answers
Answered by
Anonymous
m=(x+y)/2
(x+y+z)/3= (x+y)/3 +z/3 Multiply both sides with 1/2
(x+2)/(2*3) +z/(2*3)=[(x+y)/2]*(1/3)+z/6=
m/3 + z/6
(x+y+z)/3= (x+y)/3 +z/3 Multiply both sides with 1/2
(x+2)/(2*3) +z/(2*3)=[(x+y)/2]*(1/3)+z/6=
m/3 + z/6
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