Group+2F

media type="custom" key="6394719"

For our project we used percents and proportoins. Percents are used with sales tax, comission, discount, and intrest. We used percents and proportions when Katie and Shelby went shopping and bought shoes and sweatshirts. The problem was that if Shelby buys two Hollister sweatshirts for $100.50 what would be the tax if the tax rate is 9 percent. We solved the problem by using proportoins. When we set up a proportion, cross-multiplied, and solved,we found the tax to be $3.04. This means that the total price of the sweatshirt is $53.64.