SOLUTION: I need to find the weekly salary and commission RATE of this problem. Total compensation one week (salary+commission) on sales of $4000 is $660. The next week his total compensat

Question 420911: I need to find the weekly salary and commission RATE of this problem. Total compensation one week (salary+commission) on sales of $4000 is $660. The next week his total compensation on sales of $6000 was $740.
I know that you take the total sales and multiply it by the total commission rate variable (i used "y" for commission and "x" for weekly salary) but I can't figure out how to write the equation correctly.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = weekly salary
Let = commission rate
given:
1st week:
(1)
2nd week:
(2)
-----------------
This is 2 equations with 2 unknowns, so it's solvable
(1)
(1)
and
(2)
Now add these equations

The commission rate is 4%
and
(1)
(1)
(1)

The weekly salary is $500
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