Using google or another search engine:
- Research and then write a definition of a proportion.
- Give a real world example of a proportion.
- Find the formula for percent increase/decrease
- The temperature in Mr. McDonald's room at the start of first period was 76.8 degrees. The temperature during 5th period reached 86.2 degrees. By what percent did the temperature increase during the day?
Show and label your work. You may use a calculator.