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OpenStudy (anonymous):
If the average of 10,20,30,40, and a is 50, what is the value of a??? plz help im in 6th grade :(((
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OpenStudy (zarkon):
150
OpenStudy (anonymous):
(10+20+30+40+a)/5 = 50 (100+a)=50*5 100+a=250 a=250-100 a=150
OpenStudy (anonymous):
m not sure
OpenStudy (anonymous):
|dw:1316143888856:dw| a=150
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