If the arithmetic mean between 3a and 2a-7 is a+4 , then find a.

Asked by  | 17th Dec, 2012, 09:21: PM

Expert Answer:

Arithmetic mean = (x+y)/2

Answered by  | 18th Dec, 2012, 10:20: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.