Don an office equipment saes represents earns a weekly salar

Don an office equipment sa.es represents earns a weekly salary plus a commission on his sales One week his total on sales off $4000 was $650. The next week h.is total compensate on sales of $9000 was S900 Find Don\'s weekly salary and his commission rate. Don\'s commission rate is %

Solution

Let his salary be x and commission rate be y

Therefore,

For 1st week,

x+4000(y/100) =650

x+40y=650.......(1)

For next week,

x+9000(y/100)=900

x+90y=900.....(2)

Solving the equations

(2)-(1)

We get y=5 and x=450

Therefore commission rate is 5%.