Question

A salesperson gets a commission of $1200 for the first $10000 of sales, and then $600 for additional $10000 or partial of sales. Let S(x) respresent the commission on dollars of sales. Find the value of S(65000)

Answer 1

$4,500

I'm here to explain!

First we need to take away $10,000 from the $65,000 and commission $1200 for the first $10,000 (as you've clearly stated).

That means we have $55,000 left in sales and $1200 in commission.

Now, let's do $55,000/$10,000 to find out how many more commissions the salesman can get.

That's 5.5!

Now, we simply do 5.5 X $600 (because these are the additional commissions) to get $3,300.

Add that to the first commission of $1200 to get $4,500.

Hope that helped!

:D