1. Chapter 6-1 page 94 in your Workbooks

2. Ratio = a comparison of two quantities by division. You can write a ratio in different ways Arithmetic ways: 10 to 15 or 10 : 15 or 10 / 15 Algebra ways A to B A : B A / B, for B ≠ 0 *How do you read a ratio? How do you set up a ratio from a word problem?

3. Rate: a ratio that compares quantities in different units. Unit rate: a rate that has a denominator of 1 Ex: unit cost, gas mileage, and speed

4. Now lets try an Example! ResponseNumber Have a job40 No job60 Total100 A survey asks students whether they had after-school jobs. Write a ratio as a fraction in simplest form.

5. How do you set up this ratio? A. Write a ratio in simplest form that would say: all students surveyed to students without jobs. ResponseNumber Have a job40 No job60 Total100

6. How do you set up this ratio B. All students surveyed to students with jobs ResponseNumber Have a job40 No job60 Total100

7. Unit Cost Ex. 100 cards: price / number of cards Ex. 50 cards: Ex. 25 cards:

8. Convert 30 gal/min to cups/sec 30 gal/min =

9. Homework Finish the Quick Check in the notes Also page 367 and 368 in your workbooks