SOLUTION: If 2x+3y=11 and 2x-5y=3.what is the arithmetic mean of x and y?
Algebra
->
Sequences-and-series
-> SOLUTION: If 2x+3y=11 and 2x-5y=3.what is the arithmetic mean of x and y?
Log On
Algebra: Sequences of numbers, series and how to sum them
Section
Solvers
Solvers
Lessons
Lessons
Answers archive
Answers
Click here to see ALL problems on Sequences-and-series
Question 1085728
:
If 2x+3y=11 and 2x-5y=3.what is the arithmetic mean of x and y?
Found 2 solutions by
Fombitz, Alan3354
:
Answer by
Fombitz(32388)
(
Show Source
):
You can
put this solution on YOUR website!
Subtract the two equations,
So then,
.
.
.
Work that out for the answer.
Answer by
Alan3354(69443)
(
Show Source
):
You can
put this solution on YOUR website!
If 2x+3y=11 and 2x-5y=3.what is the arithmetic mean of x and y?
----------
Solve for x & y, then find the average of x & y.
Average = (x+y)/2
---
arithmetic mean is the average.