How do I set up this problem?

**Laura901** · July 9th 2008, 07:21 AM

Jimmy bought a CD that cost $18.99 and paid $20.51, including sales tax. What is the rate of the sales tax?

**colby2152** · July 9th 2008, 08:32 AM

Originally Posted by Laura901

Jimmy bought a CD that cost $18.99 and paid $20.51, including sales tax. What is the rate of the sales tax?

Sales tax would be $T = 20.51 - 18.99$

As a percentage on the sale, it would be $P = \frac{T}{Item}$ where Item is the CD that Jimmy bought.

**Laura901** · July 10th 2008, 06:45 AM

Originally Posted by colby2152

Sales tax would be $T = 20.51 - 18.99$

As a percentage on the sale, it would be $P = \frac{T}{Item}$ where Item is the CD that Jimmy bought.

THANKS A BUNCH!!

**colby2152** · July 10th 2008, 07:54 AM

Originally Posted by Laura901

THANKS A BUNCH!!

You're welcome.

Math Help - How do I set up this problem?