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OpenStudy (anonymous):
The data 6, 12, x, and 7 have a mean of ten. Find the value of x.
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OpenStudy (ghazi):
mean= (6+12+x+7)/4=10 now solve for x
OpenStudy (anonymous):
i got 6.25 is that right?
OpenStudy (ghazi):
nope...one more hint 6+12+x+7=10*4=40
OpenStudy (ghazi):
25+x=40 now solve for x
OpenStudy (anonymous):
okay i got 15
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OpenStudy (ghazi):
you're done :)
OpenStudy (anonymous):
thanks!!
OpenStudy (ghazi):
anytime
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