Posted by Anonymous on .
Aley Company pays all its employees in a graduated commission scale: 3% on the first $30,000 sales, 5% on sales from $30,000 to $110,000, and 7% on sales more than $110,000. Jim Jones, an employee of Aley, has $130,000 in sales. What commission did Jim earn? Show

math 
MathMate,
Work in tiers.
If sales exceed the first tier: commission 30000*3%=$900
Subtract the first tier and calculate on the next:
13000030000=100000
All of it goes on 7%, so
100000*5%=$5000
So he gets $5000+$900=$5900 in commission.