
Doug C. answered 09/05/24
Math Tutor with Reputation to make difficult concepts understandable
Let S represent his weekly salary. Let x represent hit total weekly sales.
Since he gest $500 a week plus 4% commission on his weekly sales S can be represented as follows:
S = 500 + .04 x
Note that if Tito has zero weekly sales he still gets $500, because S = 500 + .04(0).
In order to determine what is weekly sales must be in order to have a salary of $800, let S = 800 and solve for x.
800 = 500 + .04x
.04x = 300 (subtract 300 from both sides).
x = 300 / .04
You can perform that operation on a calculator or do it manually.
One we to do it manually is to convert .04 to 4/100.
300 / (4/100) is the same as multiplying 300 by (100/4). Since 100/4 reduces to 25, the answer is 300(25) --left you you..