the average of 3a+4 and another number is 2a. What is the average of the other number and a?
A ararom New member Joined Sep 20, 2007 Messages 4 Sep 20, 2007 #1 the average of 3a+4 and another number is 2a. What is the average of the other number and a?
D Deleted member 4993 Guest Sep 20, 2007 #2 ararom said: the average of 3a+4 and another number is 2a. What is the average of the other number and a? Click to expand... If you have two numbers, m & n, what is the expression of average of those two numbers ? \(\displaystyle \frac{m+n}{2}\\) Assume that the other number = x What is the expression for average of 'x' and 3a+4? Equate the above to '2a' - and solve for 'x' Now find the average for 'a' and 'x' (from the solution above)
ararom said: the average of 3a+4 and another number is 2a. What is the average of the other number and a? Click to expand... If you have two numbers, m & n, what is the expression of average of those two numbers ? \(\displaystyle \frac{m+n}{2}\\) Assume that the other number = x What is the expression for average of 'x' and 3a+4? Equate the above to '2a' - and solve for 'x' Now find the average for 'a' and 'x' (from the solution above)
