SOLUTION: Insert 4 arithmetic means between -12 and 4 ?

Algebra ->  Sequences-and-series -> SOLUTION: Insert 4 arithmetic means between -12 and 4 ?       Log On


   

Question 1142598: Insert 4 arithmetic means between -12 and 4 ?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.

The distance from -12 to 4 on number line is 16 units.


To "insert 4 arithmetic mean between -12 and 4" means to divide this distance by 5 equal intervals / (or segments).


Then the length of each such segment is  16%2F5 = 3.2; so the  arithmetic means to insert are


    -12  + 3.2 = -8.8;

    -8.8 + 3.2 = -5.6;

    -5.6 + 3.2 = -2.4;

    -2.4 + 3.2 =  0.8.



ANSWER.  The arithmetic means to insert are  -8.8, -5.6, -2.4 and 0.8.

Solved.