Help please???
Find the three arithmetic means between 7 and 21.

Question

Help please???
Find the three arithmetic means between 7 and 21.

anonymous · Answer

what does that mean??

anonymous · Answer

@petepw like what are the other three numbers in the sequence between 7 and 21

gabbyalicorn · Answer

8-20 ?

anonymous · Answer

@gabbyalicorn What?

anonymous · Answer

do you not have an idea of what the answer could be?

anonymous · Answer

no not really like I'm trying to finish up my school work really quickly because its the end of the year and I still have lots of other stuff to do and like this part was confusing to me.

anonymous · Answer

The arithmetic mean of 7,21
(7 + 21)/2
28/2
14

Arithmetic mean of 7 and 14
(7 + 14)/2
21/2
10.5

Arithmetic mean of 14 and 21.
(21 + 14)/2
35/2
17.5

So the three arithmetic means are 10.5,14 and 17.5

anonymous · Answer

http://www.freemathhelp.com/arithmetic-mean.html here is a website to help if you do not understand

anonymous · Answer

Thank you so much <3