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avatar+1286 

Assume that n ≠ 0. Find the average of this set of numbers:

 

{n, 2n, 3n, 4n, 5n, 6n, 7n, 8n, 9n}

 

A) 5

B) 5n

C) 5n^2

D) 44n/9

E) 44/9

 Nov 5, 2019
 #1
avatar+105411 
+2

Not as bad as it looks

 

Sum of values

_______________

Number of values

 

n  ( 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 )                  n (45)

________________________________   =       _______     =     5n

                            9                                                    9

 

 

Does this make sense  ???

 

 

 

cool cool cool

 Nov 5, 2019
 #2
avatar+1286 
+1

yes it does

macabresubwoofer  Nov 5, 2019
 #3
avatar+1286 
0

5n is correct. Add the 9 like terms to get 45n, then divide by 9 to get 5n.

macabresubwoofer  Nov 6, 2019

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