Discussion
If the average of 2x and 4x is 12, then x =
(A) | 1 |
(B) | ... |
(C) | ... |
(D) | ... |
(E) | ... |
(F) | ... |
The solution is
Posted: 02/23/2014 00:30
I don't understand y u put it over 2
Posted: 02/28/2014 10:57
Sonara, an average of two numbers is the sum of those numbers divided by 2. The average of 2 and 3 is (2+3)/2. And so the average of 2x and 4x is (2x + 4x)/2.