How do you do this question: Employees of a discount appliance store recieve an additional 20% off of the lowest price on an item. If an employee purchases a dishwasher during a 15% off sale, how much will he pay if the dishwasher originally cost $450?
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.
Here's how it works:
- Anybody can ask a question
- Anybody can answer
- The best answers are voted up and rise to the top
First take off 15%.
$(1 - .15)(450) = (.85)(450)$ dollars.
Then take off 20%.
$(1 - .20)(.85)(450) = (.8)(.85)(450)$ dollars.
This is the amount that an employee pays.