1. Write a function for this table.2)

2. Ratios and Proportions
I can solve problems with ratios and proportions.

3. Spelling Bee… Spelling Bee…
Of the 30 champions of the National Spelling Bee from 1974 to 2003, 16 are boys. Find the ratio of the number of champions who are girls to the number who are boys.

4. Solving Proportions… Ex. 1)
The ratio of teachers to students at DMS is 1:23. There are 1,200 students. How many teachers are at DMS?

5. Solving Proportions…
Ex. 2)
6 = 2
y –

6. Solving Proportions… Ex. 3)
At one factory, the ratio of defective light bulbs produced to total light bulbs produced is about 3:500. How many light bulbs are expected to be defective when 12,000 are produced?

7. Practice:
Pg. 124 – 125
#39 – 41, 52-57